Moved aosdesigner executable sources in it's own directory.
Added missing facilities to export/import symbols.
All aosdesigner executable sources and configuration are now in it's directory.
Also removed MSVC warnings about dllexporting symbols from template.
Added symbol export/import for the backend api.
backend: Context isn't a Singleton anymore.
Added missing boost lib info and wrong backend include dir in CMake of frontend.
Fixed include usage in frontend. Will need some more work...
frontend: added it's own source and include directory as include directory.
backend: Context documentation is wrong.
Merge branch 'feature/back-front-ends-separation' into develop