Zabbix

A......... [DEV-2437] improved scim users and groups classes

Merge in ZBX/zabbix from feature/DEV-2437-6.4 to release/6.4

* commit 'abee1ebe3c3f6ee8bf63a50f46576d4206f2efb8':
  A......... [DEV-2437] reverted part of 1373688e2af, which relates to userid in put and patch methods
  A......... [DEV-2437] fixed request filter and user response to put and patch requests
  A......... [DEV-2437] removed unnecessary todos
  A......... [DEV-2437] fixed some code style issues, comments to functions
  A......... [DEV-2437] added code fixes mostly related to status code refactoring
  A......... [DEV-2437] returned back getRequestData() method to API, removed ScimRequest class, fixed clearData method in ServiceProviderConfig test file
  A......... [DEV-2437] added API tests for ServiceProviderConfig
  A......... [DEV-2437] fixed issues with startIndex and count parameters in user and group scim responses
  A......... [DEV-2437] added tests to check scim authentication, fixed some undefined index errors and error message throwable
  A......... [DEV-2437] fixed corrections according to scim api tests
  A......... [DEV-2437] removed setData() method in SCIM Groups class and added data creation in ScimHttpResponse class
  A......... [DEV-2437] optimized SCIM Users code, moved data preparation to ScimHttpResponse class
  A......... [DEV-2437] created a separate class for SCIM HTTP request parsing, renamed scim HttpResponse class