Tweak mutations algorithm

[adQuid]

Brief Description of What This PR Does

I was thinking about the feedback I got from the AI PR that the cells weren't aggressive enough, and I realized we were thinking in terms of trying to make weak cells more likely to attack the player instead of making cells stronger so it made more sense to attack the player. I set out to tweak the mutation add and remove rates, and realized an odd (probably unintended) quirk of the code: adding an organelle had 6 chances to happen (one out of a loop and five in it, but at the same probability), while deletion had a chance of happening PER ORGANELLE. This brings microbes to a natural equilibrium of 6 organelles, beyond which they would be increasingly more likely to mutate down than up, notwithstanding (and eventually overpowering) and influences from auto-evo. This probably helped cause my experience that I would always be the biggest microbe around me, unless I intentionally chose to stay very small.

This PR edits the algorithm to have an equilibrium of (creation chance / delete chance) squared. I've set the two chances to have an equilibrium of 25. In my experience, they still don't get that big, but it seems to help increase the chance that there's something around that might be able to engulf you. I've used:

var i = 0;
		foreach (MicrobeSpecies toSpawn in CurrentGame.GameWorld.Map.CurrentPatch.SpeciesInPatch.Keys)
		{
			if (toSpawn != Player.Species)
			{
				SpawnHelpers.SpawnMicrobe(toSpawn, Player.Translation + new Vector3(4.0f * ++i, 0.0f, 0.5f * (float)Math.Pow(CurrentGame.GameWorld.Map.CurrentPatch.GetSpeciesPopulation(toSpawn), 0.35)),
				rootOfDynamicallySpawned, SpawnHelpers.LoadMicrobeScene(), true, Clouds,
				CurrentGame);
			}
		}

at line 496 of MicrobeStage.cs to see what microbe species there are without having to swim around and find all of them.

I also changed the logic for a new genus to change genus name whenever a new type of organelle evolves rather than just being on a flat chance, just as an indulgence.

Progress Checklist

Note: before starting this checklist the issue should be marked as non-draft.

• PR author has checked that this PR works as intended and doesn't
  break existing features:
  https://wiki.revolutionarygamesstudio.com/wiki/Testing_Checklist
  (this is important as to not waste the time of Thrive team
  members reviewing this PR)
• Initial code review passed
• Functionality is confirmed working by another person (see above checklist link)
• Final code review is passed and code conforms to the
  styleguide.

Before merging all CI jobs should finish on this PR without errors, if
there are automatically detected style issues they should be fixed by
the PR author.

[athariqk]

Found few things that could be improved.

[buckly90]

Seems to work alright. Divergent species are seemingly a bit more diverse in layout. Did not notice any apparent issues.

[hhyyrylainen]

Some code style comments.

[hhyyrylainen]

This is already looked up in the function calling this, should be passed in as a parameter.

[hhyyrylainen]

use var

[hhyyrylainen]

As far as I can tell, there's just two of my comments left to solve, then this can be merged (play testing didn't bring up any issues).

[adQuid]

Whoops, missed that.

changes were made