1.16.0 Refactoring config

[Carapacik]

• Wrapping collections variable introduced replacing arrayDepth and mapType: this variable presents a list of all collections wrapping a type (example: List<List<Map<String, List>>> -> [List, List, List, Map, List]) and will resolve them in order of appearance #128
• Refactor config and rename parameters:
  • squash_clients to merge_clients
  • enums_prefix to enums_parent_prefix
  • skipp_parameters to skipped_parameters
• Fixed error with required_by_default #168
• Remove config parameter put_in_folder