Switched to using the SerialCommander Library which greatly simplifies the code.
Added single pixel colour setting method (but not a Serial command yet)
Tweaked init cycle to show that individual pixel colours can be set.
Corrected a bug in colour setting not concatenating RGB colours correctly.
Sped up init process. Fixed colour command and brightness command to use ascii hex representations for colours so there is no dependence on hex codes for colour and brightness values which would only cause confusion/
Tweaked the set brightness command to use String commands unifying the entire command list now for simplicity.
Added the ability to disable the flash startup sequence.
Merge remote-tracking branch 'origin/uart-change'