Deduplicate common code between services

[a-stacey]

There is a lot of common code copy pasted code between services, for instance:

Mirza/projects/trails/src/Mirza/Trails/Service.hs

Line 59 in 07ac1dc

appMToHandler :: (HasLogging context) => context -> AppM context TrailsServiceError x -> Handler x

Mirza/projects/or_scs/src/Mirza/OrgRegistry/Service.hs

Line 120 in 07ac1dc

appMToHandler :: (HasLogging context) => context -> AppM context ORError x -> Handler x

that could be refactored easily and put in mirza-common-haskell to avoid the duplication. Further we could refactor the services so that they realy more on common code (and therefore unify the way things are handled). I had hoped to do this, but have not found the time.