Add target to expose potential .editorconfig files (#4265)
Add target to expose potential .editorconfig files (#4265)

Add a `GetPotentialEditorConfigFiles` target so design-time builds can
harvest these items and pass them to the project system.
jeffkl/msbuild,sean-gilliam/msbuild,rainersigwald/msbuild,jeffkl/msbuild,Microsoft/msbuild,sean-gilliam/msbuild,rainersigwald/msbuild,AndyGerlicher/msbuild,mono/msbuild,chipitsine/msbuild,cdmihai/msbuild,Microsoft/msbuild,sean-gilliam/msbuild,chipitsine/msbuild,sean-gilliam/msbuild,AndyGerlicher/msbuild,mono/msbuild,cdmihai/msbuild,jeffkl/msbuild,Microsoft/msbuild,AndyGerlicher/msbuild,chipitsine/msbuild,mono/msbuild,cdmihai/msbuild,AndyGerlicher/msbuild,rainersigwald/msbuild,mono/msbuild,rainersigwald/msbuild,cdmihai/msbuild,chipitsine/msbuild,Microsoft/msbuild,jeffkl/msbuild