forked from loafle/openapi-generator-original
* add REMOVE_ANYOF_ONEOF_AND_KEEP_PROPERTIIES_ONLY * add rules to simplify anyOf * fix rules, update docs * remove test * fix doc
* add REMOVE_ANYOF_ONEOF_AND_KEEP_PROPERTIIES_ONLY * add rules to simplify anyOf * fix rules, update docs * remove test * fix doc