WebUSBDevice: Return a Failure message if read throws

[majorhayes]

Description

If read() throws an error, we should return a valid Protobuf message that can be processed down the line as if the device had returned an actual Protobuf message.

• Use try/catch in sendRaw to catch errors and return a valid Protobuf Failure message

Other changes:

• Add "addDefaultTransform" transform function to jest
  • rollup's commonjs module converts all commonjs module into ES6 modules with default exports
  • This allows import module from 'module' syntax to work
  • ts-jest does NOT do this, so the compiled TypeScript files are looking for .default when importing commonjs modules, resulting in an error
• Change jest config to only look for .ts test files to avoid running any .js files in dist
• Mock "proto.json" to also export .default

[keepkeyjon]

LGTM, too