Port console to ARM11. Stub ARM9 GUI.

[GFX] Use defines for regs. Use macro for default brightness.

Verify update file signatures.

Added RSA public key for fastboot and a script to sign FIRMs.

Added function for verifying RSA 2048 SHA 256 signatures.

Added working RSA engine code.

Move GUI sources in a separate gui folder and hardware sources in hardware folder episode 2.

Move GUI sources in a separate gui folder.

Restore old behavior for boot warning/fail splashscreens.

Copy ARM9 FIRM launch stub before disabling caches.

Rename ugly my* functions.

Switched to selfmade splashscreen format. Automatic conversion not implemented yet.

ee_vsprintf() --> ee_vsnprintf() for safety.

Increased buffer in ee_printf() and fixed ee_puts() (fixes guru meditation screen).

Make gcc spit formatting errors/warnings with custom printf()/sscanf().

Replaced newlib printf()/sscanf() to get rid of bloat.

Implemented the backend for brighness adjustment.

Added license to all sources. Dir structure cleanup.

Heap start is automatically setup.

Provide a full set or read/write buffer functions + function documentation.

Added missing I2C init code.

Refactor of I2C code.

Reset performance monitor on ARM11.

Enable LTO on ARM11.

Cleanup the gfx code a bit.

Forgot to add it to gfx.h.

Added GX_displayTransfer().

Reduce screen tearing. Only double buffering can fix it completely.

Confirmed PSC0/1 interrupts. Make sure nothing uses the I2C bus at GPU init.

Added timer code for ARM11.