Add ClassTypeReference and property drawer from https://bitbucket.org/rotorz/classtypereference-for-unity/src/master/. Auto detecting resource on ResourceWatcher in parent if watch is set

Created by  itai.sharim  on October 12, 2022
IDXWT3DH3C3X7PP4VVKUZTCGDALW6NH7KREI4E2VFQVMCBJKDMTAC
Change contents