Deno support

[jmventura]

Is your feature request related to a problem? Please describe.
Deno support would be a nice feature, as the platform is growing steady and you don't have to deal with the burden of TS compilation using it.

Describe the solution you'd like
As far as I could see on the sources it should be relatively easy to port bebop to Deno, as you should't even need to deal with native bindings. I think the only overhead would be to replace some node APIs like child_process, path and maybe fs.

Just my two cents, thanks for your work.