Unity Security Update (and other issues)

Unity released a fix for a security flaw found in nearly all version of Unity. As a result we've updated Prototype Mansion from Unity 2018 (was not supported in the security update) to Unity 2022 LTS. Not only did this update fix the security flaw it came with a few other added benefits.

• Unity Security Fix.
• Fixed crash found on 2nd floor caused by sleeping cat dumping animations into queue every frame.
• Fixed issue with elevator in Overtime not always working correctly
• Updated some AI pathing issues for Muriel
• Tweaked difficulty in Muriel's area with the nurses