add ebiten game

[ValorZard]

Description

Add Ebiten Game project from https://github.com/ValorZard/gopher-combat

Note: There are two main issues with this project that aren't dealbreaking, but I'd like to see fixed at some point

1. It can only support two players (needs refactoring)
2. It requires a third party library for UI (ebitenui) I'm not too happy with this, since for forward compatibility sake it would be better if we ONLY depended on ebiten itself. However, I'm not sure if it worth it to add the complexity of our own UI to this. If we do, it should be in a seperate ui.go file

[ValorZard]

Actually switching the UI to this would probably be smart: https://github.com/ebitengine/debugui (however its not stable yet)

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 608 lines in your changes missing coverage. Please review.

Project coverage is 0.00%. Comparing base (c85f51e) to head (84ce3af).

Files with missing lines	Patch %	Lines
ebiten-game/game/main.go	0.00%	325 Missing ⚠️
ebiten-game/signaling-server/main.go	0.00%	241 Missing ⚠️
ebiten-game/game/ui.go	0.00%	42 Missing ⚠️

❌ Your patch check has failed because the patch coverage (0.00%) is below the target coverage (70.00%). You can increase the patch coverage or adjust the target coverage.

Additional details and impacted files

@@           Coverage Diff            @@
##           master    #317     +/-   ##
========================================
  Coverage    0.00%   0.00%             
========================================
  Files          25      11     -14     
  Lines        2832     986   -1846     
========================================
+ Misses       2832     986   -1846     

Flag	Coverage Δ
go	?
wasm	0.00% <0.00%> (ø)

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[ValorZard]

Ah, 0.1 of debugui is already released, we can just pin to that: https://github.com/ebitengine/debugui/releases/tag/v0.1.0

[ValorZard]

Okay so we removed the third party library and replaced it with debugui, so now all we're depending on is ebiten! This is great! Honestly the only issue now is the fact that its only two player (which would need to be fixed by a refactoring of how the signaling server works...)