The new microversion adds support for the ``in:`` syntax in the ``required``
query parameter in the ``GET /resource_providers`` API as well as to the
``required`` and ``requiredN`` query params of the
``GET /allocation_candidates`` API. Also adds support for repeating the
``required`` and ``requiredN`` parameters in the respective APIs. So
required=in:T3,T4&required=T1,!T2
is supported and it means T1 and not T2 and (T3 or T4).
Story: 2005345
Story: 2005346
Change-Id: I66543c0c5509739d1461af2fb2c327a003202d74