New modding commands of 3.14

[Endoperez]

First, #stormpower DOES work, despite what I wrote in my original post. When I tested it, I forgot to enter a value for it... In my defense, my mod manual still lacks most of the new commands. I only noticed my mistake thanks to ryo_akashi. Thanks again for that!

You can only set one #onebattlespell, but you can key multiple of those together with #nextspell.

Foodstamp - excellent workaround. If no one does it before I can (late today or perhaps tomorrow), I'll name it after you.

#onebattlespell and #nextspell will most probably require surprisingly many spell-IDs. In my simple test, giving all MA nations a spell that summons 3-4 commanders took 50 spell ID slots.

Another important thing to remember about #onebattlespell is that it allows that caster to cast the spell as if it were researched. This means that a caster may potentially spam the spell you wanted cast one time.

Also, we'll have to see if multiple #onebattlespells can be given to a unit so that it can cast any one of them. That'd let us mod the spells available to independent mages. Even one spell/independent could be used to make certain scripted maps more thematic (Witch King of Angmar spamming Undead Horde or something).
Also, it could be used to give some non-marignon holy mages ability to cast Holy Pyre, spesific priests unique holy abilities, heal spell for Arco Priestesses, etc. Also, it could be used to make some less-used pretender forms more powerful in Conceptual Balance. A Father of Winters able to spam Falling Frost, etc etc.