Forward-port the Activity Log schema, fixes #1203
Forward-port the Activity Log schema, fixes #1203

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