Mutagen and mutation cleanup

[Kelenius]

#23519

Removed defaults from threshold_mut, mutagen_message, iv_message. Mutation categories MUST set them.

Proper spacing around ellipses in mutagen messages and dreams.

Changed IV yelling messages to make more sense.

Changed how mutagen category is retrieved from the mutagen - now it uses properties. Because of that, the abstracts were changed - the game currently can't using copy-from on something that has properties/qualities set, then setting it in the child too. There's no property for ANY, because that's the default state now.

Cleaned up categories. Previously:
id: "mutation_plant"
category: "PLANT"
category_full: "MUTCAT_PLANT"
mutagen_flag: "MUTAGEN_PLANT"

Now:
id: "PLANT"

That's it. The rest is redundant.

Cleaned up mutagen iuse.

Removed MUTAGEN_STRONG flag from mutagen serum. It has no effect; the amount of mutations gained from serums is adjustable in the category JSON.

[Kelenius]

Should be ready.

[Kelenius]

Any problems here?

[ZhilkinSerg]

Any problems here?

Nope, just need more spare time to merge test this.

[ZhilkinSerg]

I guess it is safe to remove following lines now:

Cataclysm-DDA/doc/JSON_FLAGS.md

Lines 807 to 829 in 8badff7

	- ```MUTAGEN_ANY``` Causes mutation in any branch.
	- ```MUTAGEN_ALPHA``` Causes mutation in the alpha branch.
	- ```MUTAGEN_BEAST``` Causes mutation in the beast branch.
	- ```MUTAGEN_BIRD``` Causes mutation in the bird branch.
	- ```MUTAGEN_CATTLE``` Causes mutation in the cattle branch.
	- ```MUTAGEN_CEPHALOPOD``` Causes mutation in the cephalopod branch.
	- ```MUTAGEN_CHIMERA``` Causes mutation in the chimera branch.
	- ```MUTAGEN_ELFA``` Causes mutation in the elfa branch.
	- ```MUTAGEN_FELINE``` Causes mutation in the feline (cat) branch.
	- ```MUTAGEN_FISH``` Causes mutation in the fish branch.
	- ```MUTAGEN_INSECT``` Causes mutation in the insect branch.
	- ```MUTAGEN_LIZARD``` Causes mutation in the lizard branch.
	- ```MUTAGEN_LUPINE``` Causes mutation in the lupine (wolf) branch.
	- ```MUTAGEN_MEDICAL``` Causes mutation in the medical branch.
	- ```MUTAGEN_PLANT``` Causes mutation in the plant branch.
	- ```MUTAGEN_RAPTOR``` Causes mutation in the raptor branch.
	- ```MUTAGEN_RAT``` Causes mutation in the rat branch.
	- ```MUTAGEN_SLIME``` Causes mutation in the slime branch.
	- ```MUTAGEN_SPIDER``` Causes mutation in the spider branch.
	- ```MUTAGEN_TROGLOBITE``` Causes mutation in the troglobite branch.
	- ```MUTAGEN_URSINE``` Causes mutation in the ursine (bear) branch.
	- ```MUTAGEN_STRONG``` Chance of mutating several times.
	- ```MUTAGEN_WEAK``` Causes generic mutation (with less chance to mutate than `MUTAGEN_STRONG`). Still needs one of the mutation flags from the above list.

[ZhilkinSerg]

Looks good in fresh world with new character.