Superfetation — extra babies while pregnant

v1.4.0
— Late extras now stay on the current pregnancy by default and can be born Premature (slower milestones/skills as Infant/Toddler).
   - Replaces the "Queued pregnancy" feature as the new default. "Queued pregnancy" is still available if you wish to use that instead.
   - A v1.3.2 or older cfg with queued pregnancies enabled keeps queued follow-ups. You'll have to manually enable the new feature if you wish to use that one instead.
— Added new buyable reward trait: Prone to Superfetation. Increases chance of Superfetation to whatever percentage is set in the cfg.
— Pregnancy tests (and finding out without one) show a Superfetation notice instead of the game's “Eating for Two!” when superfetation extras are already on the pregnancy.
— You can set each Superfetation or queued baby’s gender in Manage.
— The game’s fertility boosts (Fertile trait, potions, massage, On Ley Line lot trait, etc.) change how many extras a conception rolls.
— Baby gender definition priority is: first by MCCC percents at conception (if MCCC is installed), then, at birth, it takes into consideration if you used strawberries/carrots/music genres during pregnancy. If you manually chose a gender it'll use that one instead. If you don't have MCCC installed and didn't use any mechanics to sway the gender, it'll use the same path as the base game does.
— An older cfg is rewritten to the current file structure; your old values are kept.
— Fixed a bug related to editing the .cfg file with different encoders.
— Various minor bug fixes.