* 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
* Add HOME/END keys as upper/lower on arrow-up/down
* Reduce .hex file size by turning off unneeded options
* Put digit keypad onto left hand upon RAISE; this will sometimes be preferable to double-hits of right hand
* Latest super latest version merge
* cbbrowne keymap for XD75re
* starting notes on XD75re keymap plans
* First draft of bottom row of QWERTY
* Switch my special bottom line over to QCENT
* Dunno
* Filling in wanted keys, bit by bit...
* Add copyright, extra macro
* Clean up comments, remove some experimental code I didn't like
* TODO plans for xd75re
* clean up keyboard layout
* QCENT2 is my new experiment for the main keyboard...
* Add a few more main layer keys, and modify LOWER to shift things outwards to conform with main layer
* Clean up RAISE layer to conform with main layer, remove QCENT layer as QCENT2 is the new thing
* More xd75 changes, now that I actually have it in hand
* shift keymap around, as original attempt was a bit too aggressive in keeping to the edges
* more revs to XD75
* Dropping parts of the centre keypad in favor of Keys I Really Need
* Improve documentation to conform with how builds are done now
* Improve documentation to conform with how builds are done now
* Add cbbrowne rules file as alternative to having the rules in Makefile
* Makefile not needed anymore for individual keymap
