[1.04b3] Raise formation percentage calculation issues

[ydmatrix2]

Raise formation screen still has issues in the Percentage calculations, when accounting for using already existing SHQ troops.

In this case, I'm raising a MG Infantry Brigade (1000 MG, 4500 Inf) while already having troops in SHQ (1000 MG, 1700 Inf).
SHQ troops are about 49% of TOE ((1000+1700)/(1000+4500)), and I have no resources to build any more.

* In the first case, I selected SHQ troops only - this should be 49%, whereas 100% is shown (the preview calculation thinks no new troops/items are needed, so everything is 100%)
* In the second case, I selected SHQ troops + new troops construction. This should *still* be 49%, but now only 1% is shown.

I think the solution is one more calculation stage is needed.
Currently:
1. Formation TOE - Existing troops in SHQ => New troops needed
2. MIN(troops%, items%, logistic%) for new troops => New troops that can be built => Final Percentage

I'd suggest to split step 2 into:
2. MIN(troops%, items%, logistic%) for new troops => New troops that can be built
3. (Existing troops (limited by logistics to hex) + New troops that can be built) / Formation TOE => Final Percentage

[Vic]

Yes this has still not been properly finetuned. I am making the next version show ITEM% and TROOP% as the percentage of the total Formation you can raise, either by using pre-produced SHQ Troops or by newly constructed (or a mix).

Thanks for helping finetune the previous change in the older beta's.

best wishes,
Vic