Add LED feature to Sun converter

Fix mousekey parameter bug

Fix keymap to adjust new keyboard.c.

Merge branch 'sun'

Use software serial for Sun.

Add Sun converter initial files.

Merge branch 'layerfix'

Add child proof keyboard locking feature!

Fix: add wait for Power down command
Add ifdef of MOUSEKEY_ENABLE

Fix projects for new keycodes

Fix HHKB iWRAP build

Fix HHKB keymap

HHKB scan matrix: fix wait time on power on

Add command console and mouseky parameters tweak.

Add Mousekey parameters and accel keys.

Fix commands

Fix use of default_layer

Fix layer switching and host API.

Add subset of Xorg MouseKey acceleration parameters.

Fix build option MOUSEKEY_ENABLE.

Clean host.h interface.