Feature/wpc implementation

[neophob]

Implements #124 , details:

Implemented:

• emuStep(howManyMsPassed)
• wpc-emu websocket decoupled - we can use the api for the main thread but there is also an API for - within the webworker
• typescript exports implemented for all api's
• write adapter between "VISUAL PINMAME COM OBJECT" and WPC-EMU (see https://github.com/vpdb/vpx-js/blob/feature/wpc/lib/scripting/objects/API.md). VpmController needs to expose this api and forward this to wpc emu
• create diff notification (send only changed Lamps, Solenoid, GI, LED)
• option to exclude "expensive state objects" like RAM, VideoRAM
• WPC-EMU, add function to set or clear a switch (only toggle was supported)
• grab rom from vpdb.io

Next steps, see #138

[codecov]

Codecov Report

Merging #139 into master will decrease coverage by 0.1%.
The diff coverage is 78.6%.

@@           Coverage Diff            @@
##           master    #139     +/-   ##
========================================
- Coverage    90.9%   90.8%   -<.1%     
========================================
  Files         266     270      +4     
  Lines       13951   14230    +279     
  Branches     1636    1664     +28     
========================================
+ Hits        12671   12911    +240     
- Misses        787     812     +25     
- Partials      493     507     +14

Impacted Files	Coverage Δ
lib/vpt/light/light-updater.ts	66.7% <0%> (-13.3%)	⬇️
lib/game/player-physics.ts	86.4% <0%> (-0.3%)	⬇️
lib/game/player.ts	86.6% <0%> (-6.7%)	⬇️
lib/render/threejs/three-material-generator.ts	57.7% <100%> (ø)	⬆️
lib/render/threejs/three-light-generator.ts	52.8% <29.5%> (+10.3%)	⬆️
lib/scripting/objects/pinball-backend/wpc-emu.ts	57.7% <57.7%> (ø)
...b/scripting/objects/pinball-backend/rom-fetcher.ts	86.7% <86.7%> (ø)
...cripting/objects/pinball-backend/emulator-state.ts	88.3% <88.3%> (ø)
...ripting/objects/pinball-backend/caching-service.ts	93.6% <93.6%> (ø)
lib/scripting/objects/vpm-controller.ts	93.9% <93.7%> (-6.1%)	⬇️
... and 7 more

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[freezy]

Awesome PR. Making progress fast here :)

I'll look into why the lights stay dark now.