0.9.1

Fix bugs that spawn player in locked rooms

Game

• Fix spawning player in locked rooms #656 (reported by @chack05)
• Fix spawning keys inside locked doors #619 (reported by @Wuzzy2)
• Add show map powerup in Doom campaign #654

Editor

• Add color highlights for locked rooms

Other

• Fix linker issue in gcc10 #658 (fixed by @susnux)