EZP-21018: changed alias to contentType in InputParserPass
EZP-21107: renamed ezpublish_rest.input_* to ezpublish_rest.input.*
EZP-21107: Fixed InputParserPass (alias not changed)
EZP-21107: fixed Input compiler passes
EZP-21107: Fixed input parsers namespace
EZP-21107: Cleaned up usage of requestParser in Input Parsers