feat(fusion-sql): add support for Files API (personal and shared spaces)

[nunogoncalves03]

We have recently updated the Management API to include new endpoints for managing files in personal and shared spaces. Thus, we would like to update the Python SDK to support these resources as well.

This PR is a follow-up of #46 and includes the Fusion SQL changes related to the Files API. The following commands have been created:

CREATE { PERSONAL | SHARED } FOLDER '<path>' [ OVERWRITE ];
DOWNLOAD { PERSONAL | SHARED } FILE '<path>' [ TO '<local_path>' ] [ OVERWRITE ] [ ENCODING '<encoding>' ];
DROP { PERSONAL | SHARED } { FILE | FOLDER } '<path>' [ RECURSIVE ];
SHOW { PERSONAL | SHARED } FILES [ AT '<path>' ] [ LIKE '<like>' ] [ ORDER BY '<order-by>' [ ASC | DESC ],... ] [ LIMIT ] [ RECURSIVE ] [ EXTENDED ];
UPLOAD { PERSONAL | SHARED } FILE TO '<path>' FROM '<local_path>' [ OVERWRITE ];

cc: @ricardoasmarques @kanitsharma