HID Gamepad support

For use with gamepad support in CircuitPython 3.0.0-alpha.6.

Fix regression on Mouse.click() and other Mouse button functions.

Merge pull request #16 from dhalbert/fix_mouse_no_move

Fix Mouse bug introduced in 3.0.0

Multimedia keys (ConsumerControl); Keyboard.send(); wait for host to be ready

1. Added ConsumerControl and ConsumerControlCode to send multimedia control requests, such as volume up/down, play/pause, etc. Many keyboards have these keys. Supported only in CircuitPython 3.0 and up.

2. Added the convenience method Keyboard.send(...), which combines Keyboard.press(...) and Keyboard.release_all().

3. When main.py starts, the host may not yet have configured the HID devices. Wait for an extra second if necessary to ensure the host is ready (see issue #13).

Added an examples folder and two example .py files.

Merge pull request #9 from Sigafoos/examples

Added examples for keyboard shortcuts and a mouse scrollwheel

Updated with lint and autobundling!

Thanks to @mrmcwethy for the great work!

Fix documentation; add Keycode.SPACE

Fixes issue #6. Some Keycodes were missing from the published documentation due to a sphinx configuration issue. Keycode.SPACE is added as an alias for Keycode.SPACEBAR.

1.0.0 @dhalbert rocks

Thanks to @dhalbert this library has been greatly improved. It now features a separate Keycode class along with improvements to the Mouse class.

Initial release for bundle

Contains basic HID related constants.