move owg_temp, owg_th and owg_tl into hash
support interval and resolution as attributes
fix generation of ROM_ID during restart
OWTHERM: attr interval+resolution, fix generation of ROM_ID on restart
correct comment
Merge branch 'refactoring_owtherm' into owx_async
fix setting of tempHigh/Low attr
merge branch 'refactoring_owthern' into owx_async
fix attr interval not fireing InternalTimer when not init_done
Merge branch 'refactoring_owtherm' into owx_async