Bimbo S-Link Overhaul Update

The wonderful C. Snacks wrote some new bimbo S-Link content that I started work on implementing!

However, in the process of looking at the old bimbo S-Link code I realized how buggy and poorly optimized it was. Guess that's what happens when you learn to code by writing it, right? I'm not gonna rewrite EVERYTHING, but this update fixes a few critical bugs that made it impossible to access bimbo Twilight's conversations without save editing.

I'll add the new C. Snacks content next week, thank you for your patience.