Fix Battle/Shell Armor + crit chance Tests

[AlexOn1ine]

• Fixes Battle Armor and Shell Armor not blocking critical hits.
• Removed STATUS3_CANT_SCORE_A_CRIT from CalcCritChanceStageArgs because it isn't used anywhere else but kept it in constants/battle.h.
• Added some crit chance tests and moved Dire Hit increases a battler's critical hit chance by 2 stages to crit_chance.c.
• Fix provided by MGriffin in test_runner_battle.c for RNG_CRITICAL_HIT.

[DizzyEggg]

Looks good, solid work!

[AlexOn1ine]

Made a minor record ability change (Idk actually how beneficial this was. Likely doesn't matter)