Added compatibility for NSC Headquarters and Annihilator Cannons.

Note: Headquarters cost may need a bit of tweaking. I had to make some tweaks to the food/alloy tradeoffs. Most NSC ships have 60% off alloy costs with an appropriate additional cost in terms of food an larva. However, if I followed the pattern for the headquarters, the food cost would be 3.5x the maximum food capacity with all technologies. You could probably get there with resource silos and such, but it wouldn't really be feasible, so, I tweaked the ratio of alloys to food to bring the food cost down to just slightly more food than the max (which is how NSC does it with alloys). Anyways, let me know in the comments if the food cost is still too much, and I can tweak it further.

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