destroy missiles leaving the map

fixes #5582
Add smooth scrolling to the ScrollPanelWidget
add the JUNGLE terrain to Tiberian Dawn

http://cnc-comm.com/community/index.php?topic=2880.0
Made TD jungle terrain slightly less blueish.
StyleCop
allow to lay single mines similiar to the original

closes #5467
Add /crash dev command

Throws an exception and crashes the game. Useful to test the
shutdown sequence.
don't try to spawn resources when the cell is already full

fixes #5699
add a new Lint check for map players
StyleCop
fix remaining errors spotted by new player lint check
Do not discard activity queue when FlyAttack completes. Fixes #4482.
Remove workaround for #4482 from 'Intervention' mission
Fix issue with capturing enemy buildings in 'Intervention' mission

The onDamaged event handler would still fire after an enemy building had
been captured. Fixed by checking the owner before starting repairs.

Thanks to Microbit for showing me that people actually did that.
Tackle the last of the low hanging fruit for memory allocations in the main game loop.

- Avoid calling string.Split twice in SprintFont.Measure.
- Change ActorsInBox method of ActorMap and ScreenMap to avoid allocating and intermediate list. As a bonus this allows the sequence to be lazily consumed. Also avoid LINQ in these methods.
- In FrozenUnderFog.TickRender, the method exits early if no players are visible so the attempt at lazy generation was not needed.
- Unwrap a LINQ Any call in ClassicProductionQueue.Tick.
- Merge some successive Where calls in ProximityCapturable into single predicates.
Merge pull request #5711 from obrakmann/flyattack-fix

Fix FlyAttack discarding the activity queue upon completion
Merge pull request #5702 from Mailaender/reslayer-cell-full

Fixed exploding harvesters spawning resources on full cells
Revert "export health, cost and damage per section into a CSV file"

This reverts commit 8249012e4b6cf7b405a1cbc2ee27b4f1c595b824.

Conflicts:
	OpenRA.Utility/Command.cs
Run StyleCop on the smaller projects.

Also add a copy of the rules to the CrashDialog and Irc projects.
Trike's weaknesses.