NormalizeStaticFilename will take various variations of a filename and normalize it to what is listed in the staticFile name cache on the Bundle struct.

Read reads a .wasm.zip file and returns the bundle of wasm modules (suitable to be loaded into a wasmer instance).

Write writes a module bundle based loosely on https://golang.org/src/archive/zip/example_test.go staticFiles should be a map of *relative* filepaths to their associated files, with or without the `static/` prefix.

Bundle represents a Module bundle.