Fix roles to work with MyPLC 5.0
Fix roles to work with MyPLC 5.0

SFA-4
MyPLC 5.0 does away with the min_role_id field in the SliceTag.  This is replaced by a list of roles that can set the tag in
the TagType.  Updated permission checks accordingly for setting SliceTags from the RSpec.
yippeecw/sfa,onelab-eu/sfa,onelab-eu/sfa,yippeecw/sfa,yippeecw/sfa,onelab-eu/sfa