This change adds support for local copies of native dependencies for
standalone apps on Linux. If there is a folder called netcoredeps next
to the main app executable, the system dynamic loader looks into that
folder first when resolving shared library dependencies of the main app
and all of the shared libraries it transitively loads.


Commit migrated from https://github.com/dotnet/core-setup/commit/ee1d44b9edccf5f472ce2407b9cde7b8b5715bb0