Revert "don't auto-target unarmed buildings in ra mod"

This reverts commit c74fa903053efd06a79ed4d4aaea53ecdb1f4161
also revert AutoTargetIgnore: for all buildings in cnc
also revert AutoTargetIgnore: for all buildings in d2k
Prevent handshake spoofing of Client data.
RA map - doughnut - made trees for bottom teams more even towards middile. Added missing fences top.
RA Sniper HP reduced from 200 to 80.
Iron Curtain duration increased from 15 to 20. Chronosphere duration decreased from 30 to 20.
MRJ missile deflection range increased from 3 to 4.
Add some noise to the C&C dialog textures.
Improve kick button label for C&C.
Remove settings UI for IgnoreVersionMismatch.
Simplify some setting descriptions.
Remove renderer type setting.

Multiple people have needed support after breaking
their game by switching to an unsupported renderer.
Use a trylock to simplify ColorMixerWidget. Fixes #3374.
Remove now-obsolete desync cheat.
Add Developer Menu toggle. Fixes #3296.
Make ChromeMetrics accessible from mod dlls.
Move color picker remap indices into a chrome metric.
Add Ui.LoadWidget<T> overload.
Remove duplication between ra and d2k lobby yaml.