Check if given klass is MidgardDBObjectClass one. Closes gh-29
Check if given klass is MidgardDBObjectClass one. Closes gh-29

midgardproject/midgard-core,midgardproject/midgard-core,piotras/midgard-core,piotras/midgard-core,piotras/midgard-core,piotras/midgard-core,midgardproject/midgard-core,midgardproject/midgard-core