Update test project file for better testatibility
Update test project file for better testatibility

Tests can now configure it with different assembly paths

chipitsine/msbuild,sean-gilliam/msbuild,chipitsine/msbuild,rainersigwald/msbuild,jeffkl/msbuild,mono/msbuild,cdmihai/msbuild,AndyGerlicher/msbuild,Microsoft/msbuild,mono/msbuild,rainersigwald/msbuild,AndyGerlicher/msbuild,rainersigwald/msbuild,Microsoft/msbuild,rainersigwald/msbuild,mono/msbuild,sean-gilliam/msbuild,cdmihai/msbuild,cdmihai/msbuild,jeffkl/msbuild,cdmihai/msbuild,jeffkl/msbuild,AndyGerlicher/msbuild,chipitsine/msbuild,AndyGerlicher/msbuild,Microsoft/msbuild,sean-gilliam/msbuild,mono/msbuild,jeffkl/msbuild,Microsoft/msbuild,sean-gilliam/msbuild,chipitsine/msbuild