Starts validation class and updates service class

Fixes set_header methods in extensions.

Refactors Auth classes and handles header with multiple values.

Uses folder path to get the group prefix.

HTTPManagerService to replace HTTPManagerAPI.

Validate params

Validate params

New methods to create requests from script

Fixes preload on test folder

Parent for group API.

Removes fetch method and adds start_await in Request

Removes fetch method and adds start_await in Request

Moves route encodings property to client.

Some token scope methods.

API gets base dir from script resource.

Gets routes dir from script and adds scopes property to routes.

Adds scope setter for OAuth 2.0

Mark as server an exported project with export option.

Handles expires_in safer

Improve API group doc

API class changes

Removes test folder from gitattributes

Less text when request is created in HTTPManagerAPI extension

Token expiration time

Save OAuth 2.0 token from dict

Client secret missing

Cache delay

Cache Downloads Support

Fixes OAuth 2.0 auth.

RichTextLabel extension to add HTML code