Keyboard: Improvement of crkbd communication functions (based on helix-keyboard) (#3798)

* improvement of crkbd communication functions (based on  helix-keyboard)

* Removed unnecessary code.

* Changed read restriction from #define to #pragma once.

* Changed from sizeof to defined size.

* moved lib folder to crkbdroot.
removed warning of ws2812.d

keyboards/crkbd/keymaps/default/keymap.c

@@ -5,7 +5,6 @@
   #include "split_util.h"
 #endif
 #ifdef SSD1306OLED
-  #include "LUFA/Drivers/Peripheral/TWI.h"
   #include "ssd1306.h"
 #endif
 
@@ -130,7 +129,6 @@ void matrix_init_user(void) {
     #endif
     //SSD1306 OLED init, make sure to add #define SSD1306OLED in config.h
     #ifdef SSD1306OLED
-        TWI_Init(TWI_BIT_PRESCALE_1, TWI_BITLENGTH_FROM_FREQ(1, 800000));
         iota_gfx_init(!has_usb());   // turns on the display
     #endif
 }