Draft: UCI mapping with TR104 : Config File Changes

Review comments fixed fore review !16 (closed) Features which Needs rename :

callforward_enabled to callforwardunconditionalenabled callforwardonbusyenable and callforwardonnoanswerenable need to be added (the feature is present under callforward_enabled ),

mwi_enabled to mwienabled, do_not_disturb to donotdisturbenable, clir to anonymouscallenable