MYGUIDE-22 As a developer I can access parsed options xml from memory on...

Added OptionService, added it to VMBase so there are small changes in all VMs
Added BooleanToVisibility converter, change name of XML exception. 
Change logic in XMLParser, now it takes string with xml file for deserialize, it's workaround for getting direct path from IS files. 
Used preprocessor commands for determine if its Debug or Release mode in MainPageVM.