Installer Architecture Revamp

[halgari]

resolves: #489

Reworks mod installers, so that they are no longer global, but come from a sorted list on the game itself. Also removes the no longer needed capabilities system. Instead now, information for each installer is added to it via the game that creates the installer.

[codecov]

Codecov Report

Merging #573 (50061dd) into main (b34be79) will decrease coverage by 0.12%.
Report is 5 commits behind head on main.
The diff coverage is 77.41%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #573      +/-   ##
==========================================
- Coverage   68.14%   68.02%   -0.12%     
==========================================
  Files         602      597       -5     
  Lines       16204    16188      -16     
  Branches     1103     1085      -18     
==========================================
- Hits        11042    11012      -30     
- Misses       4876     4900      +24     
+ Partials      286      276      -10     

Flag	Coverage Δ
Linux	67.24% <77.41%> (-0.12%)	⬇️
Windows	67.19% <77.41%> (-0.12%)	⬇️
clean_environment_tests	68.02% <77.41%> (-0.12%)	⬇️
network_tests	?
networking_tests	?

Flags with carried forward coverage won't be shown. Click here to find out more.

Files Changed	Coverage Δ
...s/NexusMods.Games.DarkestDungeon/DarkestDungeon.cs	43.75% <0.00%> (-5.09%)	⬇️
...arkestDungeon/Installers/LooseFilesModInstaller.cs	100.00% <ø> (ø)
...es.DarkestDungeon/Installers/NativeModInstaller.cs	92.59% <0.00%> (-0.75%)	⬇️
src/Games/NexusMods.Games.FOMOD/Services.cs	100.00% <ø> (ø)
src/Games/NexusMods.Games.Generic/Services.cs	100.00% <ø> (ø)
...c/Games/NexusMods.Games.RedEngine/Cyberpunk2077.cs	66.66% <0.00%> (-17.95%)	⬇️
...ames.StardewValley/Installers/SMAPIModInstaller.cs	92.30% <0.00%> (-0.80%)	⬇️
...c/NexusMods.DataModel/Games/Unknown/UnknownGame.cs	21.73% <0.00%> (-4.35%)	⬇️
...sMods.StandardGameLocators.TestHelpers/Services.cs	100.00% <ø> (ø)
...s.TestHelpers/StubbedGames/StubbedGameInstaller.cs	100.00% <ø> (+4.00%)	⬆️
... and 18 more

... and 11 files with indirect coverage changes

[Al12rs]

This looks good.
To note, this creates direct dependencies between each game project and whatever installer projects they are using.
Once we will get to the point of having games or installers not hosted in the same solution this could become less desirable.