Consider bundling and wrapping a Go compiler

[tigregalis]

Wrap a Go compiler.

From an end-user perspective, they could:

1. mix go and borgo files, with either as the root
2. transparently rewrite their go cli commands from go ... to borgo ... and it should just do the right thing

Borgo would:

1. Detect borgo and go source files
2. Transpile borgo files to go files
3. Build the project