feat: SQL server beta and templates refactoring (#32)

## Description

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In case there is no issue present for your PR, please consider creating one.
At least please give us some description what you are trying to achieve and why your change is needed. -->

relates to #1234

## Checklist

- [ ] Issue was linked above
- [ ] Code format was applied: `make fmt`
- [ ] Examples were added / adjusted (see `examples/` directory)
- [x] Docs are up-to-date: `make generate-docs` (will be checked by CI)
- [ ] Unit tests got implemented or updated
- [ ] Acceptance tests got implemented or updated (see e.g. [here](f5f99d1709/stackit/internal/services/dns/dns_acc_test.go))
- [x] Unit tests are passing: `make test` (will be checked by CI)
- [x] No linter issues: `make lint` (will be checked by CI)

Reviewed-on: #32
Reviewed-by: Andre_Harms <andre.harms@stackit.cloud>
Co-authored-by: Marcel S. Henselin <marcel.henselin@stackit.cloud>
Co-committed-by: Marcel S. Henselin <marcel.henselin@stackit.cloud>

service_specs/sqlserverflex/alpha/collation_config.yml.bak

@@ -2,7 +2,7 @@ provider:
   name: stackitprivatepreview
 
 data_sources:
-  collation:
+  collations:
     read:
       path: /v3alpha1/projects/{projectId}/regions/{region}/instances/{instanceId}/collations
       method: GET

service_specs/sqlserverflex/alpha/database_config.yml

@@ -1,13 +1,8 @@
-
 provider:
   name: stackitprivatepreview
 
 resources:
   database:
-    schema:
-      attributes:
-        aliases:
-          id: database_id
     create:
       path: /v3alpha1/projects/{projectId}/regions/{region}/instances/{instanceId}/databases
       method: POST
@@ -17,6 +12,10 @@ resources:
     delete:
       path: /v3alpha1/projects/{projectId}/regions/{region}/instances/{instanceId}/databases/{databaseName}
       method: DELETE
+    schema:
+      attributes:
+        aliases:
+          id: databaseId
 
 
 data_sources:
@@ -26,9 +25,10 @@ data_sources:
       method: GET
 
   database:
-    attributes:
-      aliases:
-        id: database_id
     read:
       path: /v3alpha1/projects/{projectId}/regions/{region}/instances/{instanceId}/databases/{databaseName}
       method: GET
+    schema:
+      attributes:
+        aliases:
+          id: database_id

service_specs/sqlserverflex/alpha/version_config.yml.bak

@@ -3,7 +3,7 @@ provider:
   name: stackitprivatepreview
 
 data_sources:
-  version:
+  versions:
     read:
       path: /v3alpha1/projects/{projectId}/regions/{region}/versions
       method: GET

service_specs/sqlserverflex/beta/backup_config.yml.disabled

@@ -0,0 +1,13 @@
+provider:
+  name: stackitprivatepreview
+
+data_sources:
+  backups:
+    read:
+      path: /v3beta1/projects/{projectId}/regions/{region}/instances/{instanceId}/backups
+      method: GET
+
+  backup:
+    read:
+      path: /v3beta1/projects/{projectId}/regions/{region}/instances/{instanceId}/backups/{backupId}
+      method: GET

service_specs/sqlserverflex/beta/collation_config.yml.disabled

@@ -0,0 +1,8 @@
+provider:
+  name: stackitprivatepreview
+
+data_sources:
+  collation:
+    read:
+      path: /v3beta1/projects/{projectId}/regions/{region}/instances/{instanceId}/collations
+      method: GET

service_specs/sqlserverflex/beta/database_config.yml

@@ -0,0 +1,34 @@
+
+provider:
+  name: stackitprivatepreview
+
+resources:
+  database:
+    schema:
+      attributes:
+        aliases:
+          id: databaseId
+    create:
+      path: /v3beta1/projects/{projectId}/regions/{region}/instances/{instanceId}/databases
+      method: POST
+    read:
+      path: /v3beta1/projects/{projectId}/regions/{region}/instances/{instanceId}/databases/{databaseName}
+      method: GET
+    delete:
+      path: /v3beta1/projects/{projectId}/regions/{region}/instances/{instanceId}/databases/{databaseName}
+      method: DELETE
+
+
+data_sources:
+  databases:
+    read:
+      path: /v3beta1/projects/{projectId}/regions/{region}/instances/{instanceId}/databases
+      method: GET
+
+  database:
+    attributes:
+      aliases:
+        id: database_id
+    read:
+      path: /v3beta1/projects/{projectId}/regions/{region}/instances/{instanceId}/databases/{databaseName}
+      method: GET

service_specs/sqlserverflex/beta/flavors_config.yml

@@ -0,0 +1,9 @@
+
+provider:
+  name: stackitprivatepreview
+
+data_sources:
+  flavors:
+    read:
+      path: /v3beta1/projects/{projectId}/regions/{region}/flavors
+      method: GET

service_specs/sqlserverflex/beta/instance_config.yml

@@ -0,0 +1,28 @@
+provider:
+  name: stackitprivatepreview
+
+resources:
+  instance:
+    create:
+      path: /v3beta1/projects/{projectId}/regions/{region}/instances
+      method: POST
+    read:
+      path: /v3beta1/projects/{projectId}/regions/{region}/instances/{instanceId}
+      method: GET
+    update:
+      path: /v3beta1/projects/{projectId}/regions/{region}/instances/{instanceId}
+      method: PUT
+    delete:
+      path: /v3beta1/projects/{projectId}/regions/{region}/instances/{instanceId}
+      method: DELETE
+
+data_sources:
+  instances:
+    read:
+      path: /v3beta1/projects/{projectId}/regions/{region}/instances
+      method: GET
+
+  instance:
+    read:
+      path: /v3beta1/projects/{projectId}/regions/{region}/instances/{instanceId}
+      method: GET

service_specs/sqlserverflex/beta/user_config.yml

@@ -0,0 +1,24 @@
+
+provider:
+  name: stackitprivatepreview
+
+resources:
+  user:
+    create:
+      path: /v3beta1/projects/{projectId}/regions/{region}/instances/{instanceId}/users
+      method: POST
+    read:
+      path: /v3beta1/projects/{projectId}/regions/{region}/instances/{instanceId}/users/{userId}
+      method: GET
+    update:
+      path: /v3beta1/projects/{projectId}/regions/{region}/instances/{instanceId}/users/{userId}
+      method: PUT
+    delete:
+      path: /v3beta1/projects/{projectId}/regions/{region}/instances/{instanceId}/users/{userId}
+      method: DELETE
+
+data_sources:
+  user:
+    read:
+      path: /v3beta1/projects/{projectId}/regions/{region}/instances/{instanceId}/users
+      method: GET

service_specs/sqlserverflex/beta/version_config.yml.bak

@@ -0,0 +1,9 @@
+
+provider:
+  name: stackitprivatepreview
+
+data_sources:
+  version:
+    read:
+      path: /v3beta1/projects/{projectId}/regions/{region}/versions
+      method: GET