Create component metadata for state.postgresql (#2695)

Signed-off-by: MregXN <46479059+MregXN@users.noreply.github.com>

state/postgresql/metadata.yaml

@@ -0,0 +1,55 @@
+# yaml-language-server: $schema=../../component-metadata-schema.json
+schemaVersion: v1
+type: state
+name: postgresql
+version: v1
+status: stable
+title: "PostgreSQL"
+urls:
+  - title: Reference
+    url: https://docs.dapr.io/reference/components-reference/supported-state-stores/setup-postgresql/
+capabilities:
+  # If actorStateStore is present, the metadata key actorStateStore can be used
+  - actorStateStore
+  - crud
+  - transactional
+  - etag
+  - query
+  - ttl
+metadata:
+  - name: connectionString
+    required: true
+    description: The connection string for the PostgreSQL database
+    example: "host=localhost user=postgres password=example port=5432 connect_timeout=10 database=dapr_test"
+    type: string
+  - name: timeoutInSeconds
+    required: false
+    description: Timeout, in seconds, for all database operations. 
+    example:  "30"
+    default: "20"
+    type: number
+  - name: tableName
+    required: false
+    description: Name of the table where the data is stored. Defaults to `state`. Can optionally have the schema name as prefix, such as `public.state`
+    example: "public.state"
+    type: string
+  - name: metadataTableName
+    required: false
+    description: Name of the table Dapr uses to store a few metadata properties. Defaults to `dapr_metadata`. Can optionally have the schema name as prefix, such as `public.dapr_metadata`
+    example: "public.dapr_metadata"
+    type: string  
+  - name: cleanupIntervalInSeconds
+    required: false
+    description: Interval, in seconds, to clean up rows with an expired TTL. Default to 3600 (i.e. 1 hour). Setting this to values <=0 disables the periodic cleanup.
+    example:  "1800"
+    type: number
+  - name: connectionMaxIdleTime
+    required: false
+    description: Max idle time before unused connections are automatically closed in the connection pool. By default, there's no value and this is left to the database driver to choose.
+    example:  "5m"
+    type: duration
+  - name: actorStateStore
+    required: false
+    description: Consider this state store for actors. Defaults to `false`
+    example: "false"
+    type: bool