Fixes mods not allowing multiple spritesheets - other misc. fixes — Spellmasons Steam update #617775

Spellmasons Update v1.12.0 - Thanks to the following community members for reporting issues or making suggestions included in this update! Blood Spartan Vivid Empress MrMarblz - Quality of Life: Speed up target_kind - fix: Prevent choosing calamities that you've already chosen - fix: Protect against unit being loaded in with null stamina - fix: Spell displace sometimes pushing enemies into walls - fix: Keep perks fresh when user is selecting multiple perks on one level, which can happen if player is joining a game late. - fix: Perk labeling - Fix: calamities not being given after you run out of spell upgrades - UX: Don't show player thoughts when hovering over non-game space such as inventory or toolbar. - mod: export cards/util to API - mod: mod loading bug where only one mod with a spritesheet could be loaded or else it would error out