Process a (set of) CC/PP UAProf device attribute(s) from the input map into a (set of) MCS device attribute(s) in the output map.
The input map is in String:Object format, where the key is a CC/PP UAProf attribute name and the value is the object returned by CC/PP API Attribute.getValue().
The output map is in String:String format, where both the key and value must be valid MCS device attribute names and values.
Attributes should generally be removed from the input map once processed to prevent re-processing, and only added to the output map once to prevent overwriting.
@param inputMap the map of CC/PP device attributes.
@param outputMap the map of MCS device attributes