Squad Tweaks

Collection of tweaks and features designed to give Game Masters, server administrators, and scenario creators enhanced control over squads.

- "Minimum group fill ratio" attribute can be edited via scenario properties in GM scenario.
- "Minimum group fill ratio" attribute can be edited in GroupsManagerComponent.
- Squad leader marker visibility can be edited via scenario properties in GM scenario.
- Squad leader marker visibility can be edited in GroupsManagerComponent.
- Squad marker update interval can be edited via scenario properties in GM scenario.
- Squad marker update interval can be edited in MapMarkerManagerComponent.

- All groups now have minimum and maximum size player can edit via group settings.
- All predefined group presets now have minimum and maximum size, which can be edited.

- Added new "Engagement Rules" category to command radial menu (~).
- Invite players to your group via the command radial menu (~), similar to bot recruiting.
- Commands assigned through the map are now hidden in the world.