Move DB handling into specialised classes

This keeps CuraContainerRegistry a lot cleaner, especially when more container types are
added

Cura-6096

cura/Settings/DatabaseHandlers/IntentDatabaseHandler.py

@@ -0,0 +1,35 @@
+from UM.Settings.DatabaseContainerMetadataController import DatabaseMetadataContainerController
+from UM.Settings.InstanceContainer import InstanceContainer
+
+
+class IntentDatabaseHandler(DatabaseMetadataContainerController):
+    def __init__(self) -> None:
+        super().__init__(
+            insert_query="INSERT INTO intents (id, name, quality_type, intent_category, variant, definition, material, version, setting_version) VALUES (?, ?, ? ,?, ?, ?, ?, ?, ?)",
+            update_query="",
+            select_query = "SELECT * FROM intents where id = ?",
+            table_query="""CREATE TABLE intents
+               (
+                   id text,
+                   name text,
+                   quality_type text,
+                   intent_category text,
+                   variant text,
+                   definition text,
+                   material text,
+                   version text,
+                   setting_version text
+               );
+               CREATE UNIQUE INDEX idx_intents_id on intents (id);"""
+        )
+
+    def _convertRawDataToMetadata(self, data):
+        return {"id": data[0], "name": data[1], "quality_type": data[2], "intent_category": data[3], "variant": data[4], "definition": data[5], "container_type": InstanceContainer, "material": data[6], "version": data[7], "setting_version": data[8], "type": "intent"}
+
+
+    def _convertMetadataToInsertBatch(self, metadata):
+        return metadata["id"], metadata["name"], metadata["quality_type"], metadata["intent_category"], metadata[
+            "variant"], metadata["definition"], metadata["material"], metadata["version"], metadata["setting_version"]
+
+
+