Implementing post-stream bug fixes

This addresses some issues found during my last KEP stream.
- Take Down TM on Silph 5F to Earthquake, ensuring that TM does not go unused.
- Bill's Garden now features Lapras and has level deviation.
- Mt. Moon B1F's area where you access Mt. Moon Square now uses an upward-facing ladder, giving the illusion of going to a summit-like location. This makes its current odd location make more sense while not invalidating the progression regular Mt. Moon has.
- Melanie should now give Bulbasaur correctly.
- The Karate Master now has a failsafe for if you got a Hitmon, where he is guaranteed to not refight you before the post-game.
- Fixed a 17 error Old Dance Jacket reported with the Up-Grade NPC's text.
- Fixed nickname screen corruption when getting the Pikachu/Eevee mode starters.
- Fixed some curious warp issues with Lavender Tower by reversing 3F. Could use with some tinkering. Silph still needs fixes.

Credits have also been made more precise in the interests of better open source derivatives. Felt a bit odd expanding my credits so much, but this also made me realise I need to touch grass more frequently. I have also made our Open Source policy more precise.

scripts/FightingDojo.asm

@@ -109,6 +109,8 @@ FightingDojoText1: ; gym scaling can be removed to make space
 	text_asm
 	CheckEvent EVENT_POST_GAME_ATTAINED ; No need to view previous stuff, technically you can skip Bide this way but I think that's hilarious
 	jp z, .normalProcessing
+	CheckEvent EVENT_GOT_HITMON ; failsafe
+	jp nz, .continue2
 	CheckEvent EVENT_DEFEATED_FIGHTING_DOJO
 	jp nz, .continue1
 	CheckEventReuseA EVENT_BEAT_KARATE_MASTER