Verify PolicyType on service and offline client side

Verify PolicyType on service and offline client side

Verification of PolicyTypes was removed from libcynara-admin library.
Now it is added to Cynara service and cynara offline admin with full
plugin support. It means, that validation passes only for predefined
types or types provided by loaded cynara service plugins.
In case, the validation fails, new CodeResponse::Code::NO_POLICY_TYPE
value is returned from service to libcynara admin side and
CYNARA_API_INVALID_PARAM is returned from cynara_admin_set_policies()
or cynara_admin_set_bucket() functions.

Change-Id: Id1a85aafaa4feb31d8513e819c78736813a9ff38