Combined Arms: add single unit formation

[okopanja]

Problem: At the moment ground units placed into single group can not be moved from F10 individually. 
Attempt to plot the path from F10 leads to whole group being moved in pre-selected formation. Individual movement is possible only by jumping directly into the unit and then driving it manually, which is often impractical.

Why: achieve better tactical usage of units. E.g. if commanding larger group the default formations will place them in sub-optimal positions, thus often causing the units to be completely useless. E.g. you do not wish to place radar in a ground hole where it can not see anything.   

Proposed solution: Introduce additional formation called Individual, represented as a singl3e white dot in drop down menu. 
When this formation is selected and specific unit is selected, plotting the route shall be applied only to selected unit. The player should be able to plot each of the units individually without affecting already moving units. 

I hope this would be a low hanging fruit, as long as the order of formations and their corresponding identifiers are not changed.

Edited 14 hours ago by okopanja