feat(chatwoot): import history messages to chatwoot on whatsapp connection

Messages are imported direct to chatwoot database. Media and group messages are ignored.

New env.yml variables:
CHATWOOT_IMPORT_DATABASE_CONNECTION_URI: URI to connect direct on chatwoot database.
CHATWOOT_IMPORT_PLACEHOLDER_MEDIA_MESSAGE: Indicates to use a text placeholder on media messages.

New instance setting:
sync_full_history: Indicates to request a full history sync to baileys.

New chatwoot options:
import_contacts: Indicates to import contacts.
import_messages: Indicates to import messages.
days_limit_import_messages: Number of days to limit history messages to import.

package.json

@@ -76,6 +76,7 @@
     "node-mime-types": "^1.1.0",
     "node-windows": "^1.0.0-beta.8",
     "parse-bmfont-xml": "^1.1.4",
+    "pg": "^8.11.3",
     "pino": "^8.11.0",
     "qrcode": "^1.5.1",
     "qrcode-terminal": "^0.12.0",
@@ -112,4 +113,4 @@
     "ts-node-dev": "^2.0.0",
     "typescript": "^4.9.5"
   }
-}
+}