family tree lifespan bars and name generation tweaks

[Rustoration]

Simply put, it's pretty annoying to go through the family tree to decide which genes to take to the next island, and have to close it and track down the right nicheling to check its age- which often look very similar and make it difficult to find the right one. Also, maybe a bit of a filter for the names? As funny as it is to end up with twins both named Koko, it can get a bit confusing at times. I know I can easily rename them, but part of the appeal of the game for me was not having to think up my own names since I'm usually incredibly indecisive when it comes to naming things. I also ended up with a 3rd Koko shortly after...