v1.4.0

• Adding a command+argument typehint override, for when the html docs don't acturately reflect what an argument actually takes.
  • Adding override entries for a number of unique and situational arguments that the help docs don't correctly account for. See the type_tables.py's cmd_arg_typehint_override variable for examples.
• Typehints are no longer string values and are now actual objects from the typing module
  Eg: replacing "Tuple[float, float float]" with Tuple[float, float, float]
• External commands have been added back. These are commands which get added to the maya.cmds module by maya's default, bultin plugins and registered mel commands. So commands like cmds.DeleteHistory() will no longer be reported as an invalid command.