PATCOM Garrisons minor fixes and adjustments

[MeltedPixel]

What type of PR is this.

1. Bug
2. Change
3. Enhancement

What have you changed and why?

Information:
Changed how garrison units are distributed to buildings. Instead of filling up all building positions and then moving to the next building in the list, the script now takes the amount of garrison-able buildings and units and distributes them evenly with a defined minimum allowed in each building.

Changes how finding garrison-able buildings functions. Instead of it being a one or the other choice, it now just uses the A3A building blacklist and checks for pre-defined building positions in the whitelist. If pre-defined positions are not found, we use the default ones and randomize.

Please verify the following and ensure all checks are completed.

1. Have you loaded the mission in LAN host?
2. Have you loaded the mission on a dedicated server?

Is further testing or are further changes required?

1. No
2. Yes (Please provide further detail below.)

How can the changes be tested?

Steps:

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Notes:

Should fix, #2810

[MeltedPixel]

It doesn't specifically close #2869, but it does sorta mesh with it.

[jaj22]

Seems like good changes. Made a couple of optional notes.

[ante185]

this seems to happen much more reliably with this. Presumably because all the building-units don't end up all in the same building?

[Bob-Murphy]

Will check next week

[jaj22]

Looks good.

[MeltedPixel]

Ignore little guy close to the static in the building. He was running to arm it, but did not spawn close to it.

[ante185]

tried this out on my isla duala port, and the stuff looks great!
It seems to be decent at putting the garrison in either good overwatch location or at unexpecting angles, some positions are less than ideal but with the units spread out it's less of a big deal (No more wiping a resource or factory with a single nade into a warehouse)

Perhaps a little bit of a bias towards small buildings, but i suppose that's inevitable/unsolvable

[rautamiekka]

Capitalization fix.