* Keyboard: add treeadstone48
* rename layout defines
* Use of pragma once
* move common include code
* fixed info.json
* change keymap layout from kc to normal
* fix alpha revision keymap
* fixed info.json
* remove USE_Link_Time_Optimization
* I re-created treastone48 keyboard firmware from ./util/new_keyboard.sh
After that I use common OLED_DRIVER, RGB_LIGHT and SPLIT_KEYBOARD options.
And then check all keymap.
* Modified by PR review
240e1ef6fd