v0.2.0

Hardware:

• Fix SRAM CE signaling
• Drop Samtec stacking headers

Firmware:

• Improve HTTP client robustness
• Fix write pulse timing for SRAM
• Wait for serial before running speed tests

Encoder:

• Add countdown for frames in final output

Emulator:

• Add web-based emulator (Genesis Plus GX via libretro core and nostalgist.js)
• Major refactor of emulation code to support the web
• Refactor global state
• Remove winpthread dependency in Windows build of BlastEm
• Raise seg fault if we overflow SRAM in the emulator

Software:

• Stop playback on error
• Show specific failures in SRAM march tests
• Correct march test calculations on Sega
• Add network tests to the self-testing ROM