* Port the interdependent-binding-projects test to .NET (it's the simplest
test project we have with binding projects).
* Add a lot of the shared source code for mtouch/mmp to dotnet-linker, and
make it compile. Most issues were fixed by adding a few stubbed out classes,
since there are large chunks of the mtouch/mmp code we're not using yet, so
stubbing out while things are being implemented works fine.
* Add a step in dotnet-linker for loading the linker output (the linked
assemblies) into our bundler code.
* Add another step in dotnet-linker to extract native resources from binding
libraries.
* Augment the build process to take into account the native resources we found
in any binding libraries.