Add alien containment management to game

Accessible by right clicking alien containment in base view.  Invoked
automatically if alienContainmentLimitEnforced is enabled and
containment limit is exceeded after a mission.
Add files to commit
Rename files
Centre ok button
More renaming and centering
Ensure available and used space does not include aliens under research
If UFO detected by conventional radar, check other bases, maybe they has hyper-wave decoder.
Some optimizatios.
Merge branch 'master' into containmentManagement

Conflicts:
	bin/data/Language/en-US.yml
	src/CMakeLists.txt
Add additional strings to en-GB too
Alter containment management screen colors
CompilWarnings
refactornig
New Advanced-Option: Psi-Strength Evaluation; Default: OFF
Evaluates the psionic strength of all soldiers after the appropriate research has been completed.
Updated Changelog
Font fixes
Cyclic animation of arrow above unit

Animation imrovement of arrow above unit
- Cyclic animation
- Arrow is hidden when unit moves
allow for limited shot weapons without clips.
EXPLOSIONS!!!1
Merge pull request #713 from starwindz/master

Cyclic animation of arrow above unit
Merge pull request #711 from fenyo1/psiStrengthEval

New Advanced-Option: Psi-Strength Evaluation; Default: OFF