Adds the option to inline generated code

Rather than emitting separate files for each WASM module and
AudioProcessor, users can now specify the option `inline: true` to embed
the content of those files into the JavaScript bundle as base64 data URLs.

Release v1.2.3

Version 1.2.2

Merge pull request #6 from Smona/fix-readme-highlighting

Optimize asset loading & caching

only fetch each resource from the network once,
and only compile each wasm module once

Expose TS types & add instructions for writing declaration file

add keywords

Cut new release