Lots of changes/additions.
Added:
* Firmware Updater support: Supports the Firmware Updater app (release to follow soon). Enabled by default, can be disabled in the config.
* 3.3V Fix (3V3FIX): Enable if you have stability issues when using 3.3V, works best with VSELECT. Disabled by default, can be enabled in the config.
* `DynamicClockSerial`: Class that extends and modifies HardwareSerial to be compatible with a dynamically changing clock speed. Used through the `ClockedSerial` object/variable.
* `OSCR.cpp` & `OSCR.h`: New files for storing globals. Only contains these new additions for now. More code cleanup to come.
Changed:
* Moved configuration flags to `Config.h` and documented them better.
* Removed `vselect()` function. Now uses `setVoltage()` with the params `VOLTS_SET_3V3` and `VOLTS_SET_5V`.
Known Issues:
* Rarely the LCD backlight turns white when using 3V3FIX. Resetting fixes it. Doesn't affect functionality/usability; it's just weird.
- fix a loop issue brought by yesterday's commit, when banks were increased/decreased and ROM dumped right after.
- screen is now refreshing fine after bank increase/decrease or forced rom size
- display the ROM size value to be set, before forcing it
Improved convenience :
- Tennokoe dumps are saved into a dedicated "./PCE/RAM/" folder
- "Reset" command was moved to the very last option of PCE menu
- Fixed the double button push when increasing/decreasing the bank index
- Forced ROM size can be set via defined variable
- Removed some repeated/unneeded function calls
Also, make print_FatalError(*) independent from print_Error(*).
Also, factorise common parts of print_Error(*).
Frees 2336 bytes of program space and 5 bytes of global ram space.
Values can be directly composed/initialised in menuOptionspceCart, avoiding
the need to strcpy to it.
This saves about 100 bytes of ram by dropping a few global char arrays.
Re-duplicates "Reset" string initialiser, but this should not be a big
deal.
