Remove ability for Sniper to capture churches.
Use map.Contains for the observer shroud check.

Checking against the bounds directly is no longer valid.
Add support for diamond cell grids.
Extract TS blank-conquest map.
remove blank-testmap.
Enable isometric perspective in TS.
Fix sprite overlap outside the map border.
allow artillery to shoot over walls
allow the RPG tower to shoot over walls
fix a rounding problem in SHP(TS) offset floating point math

closes #5765
Merge pull request #5785 from Mailaender/ts-high-fix

Fixed Tiberian Sun artillery not shooting over walls.
Remove invalid sniper actor from Poseidon map.
Merge pull request #5778 from pchote/isometric

Add support for diamond cell grids
Merge pull request #5742 from tomlane/sniperChurches

Remove ability for Sniper to capture churches.
Merge pull request #5786 from Mailaender/shp-ts-offset-fix

Fixed Tiberian Sun construction yard flickering
move non-rendering related MultiTapDetection to OpenRA.Game

and sort into sub-folders Input and Graphics
split Sound.cs in smaller chunks
StyleCop