Add .gitattributes
Add test resources (assemblies)
Add attribution and license from Mono.Cecil
Add PE header parser, extracted from https://github.com/jbevain/cecil 17d5b63fefde75d400e7fabb0a1e92755f8be5af

Compiles and tests pass, but has not been cleaned up; had to hack every class.
Add EmptyProjects for creating assemblies to test parsing against.
Add test assemblies
Add tests for C++/CLI assemblies. Native assemblies do not yet parse.
Get non-.NET assemblies to parse.
Prune unused code
Add Empty Csharp project.
Add Csharp test assemblies
Add tests for CSharp assemblies, clean up C++/CLI tests
Fix incorrect test data - pure and safe x86 C++/CLI assemblies were neither.
Correct the tests based on the new, correct test assemblies
Refactor and drop more unused code