Beta 7 test release

Release to test new ntsc artifact code

Beta6 test release

Beta 6 test release with NTSC artifact colour support for Tandy CoCo 1 & 2.
Also test profile for CoCo 3

Beta5 test release

12 Bits per pixel support in BBC CPLD for NuLA etc
Improved interlaced menus

Beta4 test release

New features:
Update RGB CPLD to v8.4 with 4 level analog support and 8/12 bit capture support
Update YUV CPLD to v9.0 with 4 level analog support and changes to leading edge sync
Support 16 BPP frame buffer with 12 BPP capture
Support 16 BPP menus
Support 16 BPP screencaps
Merge profile formats so they are interchangeable (Allows some RGB profiles to run under YUV or vice-versa)
Change overscan option to allow proper zooming in interpolated scaling modes.
Add new palette menu to adjust video levels in all profiles
Add optional jitter filter ("Flywheel") on vsync to eliminate vertical jitter on systems with RC monostable Vsync pulses like UK101/TRS80
Support interlaced video such as Amiga 640x512 with weave and bob deinterlacing
Improve OSD responsiveness
Add Amiga support
Add simple mode for 12BPP capture which doesn't require a CPLD, just 12 bits video, sync and pixel clock/2 straight into the Pi zero via level shifters if required.

Beta3 test release

Update Commodore 64 support to use new palette
Add 4 level support to RGB and YUV CPLDs
Add 8 bit capture to RGB CPLD

Beta2 test release

Changes:
Commodore 64 support
Flywheel vsync to elimate jitter with vsyncs generated by RC monostables
Various bugfixes

Beta1 test release

Beta 1 test release
Changes:
Continuous PLL and Sync tracking to compensate for thermal drift
Fix CPLD recovery menu bug
Add feature to Erase the CPLD by deleting a file (In case CPLD is already programmed with some other design)
Hide files beginning with '.' (Mac resource forks)
Add support for 4 level YUV and RGB (Must fit U7 on analog board)
Add support for new analog board design made by JLC
Add Auto scaling option
Add NTSC colour burst detection to automatically switch NTSC artifacting on and off
Improve NTSC artifact colour decoding