* Refactor layout macro names
Update the names of the layout macros to reflect QMK's desired usage.
- KEYMAP renamed to LAYOUT
- colinta keymap updated accordingly
- KC_KEYMAP renamed to LAYOUT_kc
- mtdjr keymap updated accordingly
* Update xd75.h to use #pragma once include guard
* Update keymaps to use QMK_KEYBOARD_H
* Refactor default keymap
- updated to use layout macro
- remove deprecated action_get_macro function
- add functions from QMK keymap.c template
- process_record_user
- matrix_init_user
- matrix_scan_user
- led_set_user
* Update supporting files
- updated config.h files to use #pragma once include guard
- remove errant QUANTUM_DIR code block
* Rename readme files to fully lowercase filenames
* Restructure keyboard readme
Updated the readme to better align with the current QMK template.
* Bugfixes to supporting files
* slight tweaks to xd75 keymap
* update to config.h to remove undef of solenoid active
* code organization for userspace
* updates to userspace and keymaps
* add rgb to userspace and lets split
* add conditional around rgb functions in userpsace
* move rgb layer changes into layer_state_set_user
* add not-so-minidox handwire keyboard
* corrected keymap
* multiple adjustments to not_so_minidox keyboard
* remove I2C master left define
* update default layer set function
* move solenoid code into userspace
* minor adjustments to config.h
* update keymaps to utilize userspace
* move features and config to userspace, correct build issue
* correct solenoid pin
* adjust defaults for solenoid pin and enable
* default solenoid to on for not_so_minidox
* disable RGBLIGHT_SLEEP for xd75
* tweaking solenoid enable/disable in userspace and keymaps
