Activated Option name-tag-list for mkgmap
Adding new option --ntl: enables to override the name-tag-list used to choose what is used as 'Name' for an object.... default is just 'name'. If option is present it's just handed over to mkgmap without syntaxchecking.
Added some checking to ntl: if 'name' isn't part of the nametaglist a WARNING is given.
Finish nametaglist: integrating new option 'ntl': possibility to override nametaglist of mkgmap run