Add board specific to Proton-C, with usual defaults turned on. (#10976)

- Set all other ChibiOS defaults to 'off', when not targeting Proton-C
- Modified all existing F303 boards to point at the QMK_PROTON_C to ensure repeatable binary output
- Modified version.h generation so that SKIP_VERSION=yes generates the same output

platforms/chibios/common/configs/halconf.h

@@ -31,7 +31,7 @@
 #define _CHIBIOS_HAL_CONF_
 #define _CHIBIOS_HAL_CONF_VER_7_0_
 
-#include "mcuconf.h"
+#include <mcuconf.h>
 
 /**
  * @brief   Enables the PAL subsystem.