tests: Fix up Makefile and csproj file
tests: Fix up Makefile and csproj file

mono/dbus-sharp,arfbtwn/dbus-sharp,mono/dbus-sharp,arfbtwn/dbus-sharp,openmedicus/dbus-sharp,openmedicus/dbus-sharp,Tragetaschen/dbus-sharp,Tragetaschen/dbus-sharp