* Add modifier state to the split transport
This adds modifier state to the i2c and serial transport for split
keyboards. The purpose of this is to allow e.g. displaying modifier
state on the slave side of a split keyboard on an oled. This adds one
byte to the data transferred between halves.
This also fixes a missing ifdef guard for BLACKLIGHT_ENABLE.
Break modifiers into real/weak/oneshot
Fix incorrect slave serial mod setting
Fix typo in serial weal mod setter
Fix build errors for the I2C code that I introduced
Code cleanup and formatting per project preferences
Correctly get oneshot mods
Fix missing braces
Remove unneeded ifdef guard
Make the added state transport optional
Add documentation for the new define to enable this feature
Fix stray grave mark
* Fix error introduced in conflict resolution
* Initial stab at some fake dfu-util-split-left behaviour
* Apply suggestions from code review
Co-Authored-By: fauxpark <fauxpark@gmail.com>
* Clang format fixes
* Fake eeprom init for both left and right hand
