Accept DevCommands only from local Players
Make WithRotor independent from WithTurret

Move WithRotor to Mods.Common
Rename CommonTraitsInterfaces to TraitsInterfaces, move to Traits namespace
Merge pull request #7153 from reaperrr/ra-common20

More RA/Common reorganisation
notify user that his server does not have forwarded ports
Merge pull request #7149 from LipkeGu/devcmd_observer_crash

Accept DevCommands only from local players
Merge pull request #7152 from ihptru/masterserver

notify user that his server does not have forwarded ports
Disable SA1024 and SA1035.

These rules generate many false positives, and do not help with code readability within OpenRA.
Remove redundant StyleCop definitions.
Move OpenRA.Lint into a --check-yaml utility command.
Add --check-code-style utility command.