Add local Compiler Explorer feature

[adlerjohn]

I'd like to run something like forc godbolt and have it launch a local instance of Compiler Explorer so I can inspect how the Sway source code maps to asm with different compiler options. Doesn't have to be Compiler Explorer, or even in the browser if IDEs can do it.

Maybe blocked by source mapping #70.

[m-fawaz]

In a dream world, we would have a nightly build of the Sawy compiler accessible through a public godbolt link just like https://rust.godbolt.org/ - Imagine sway.godbolt.org where developers can easily look at the generated assembly.

Do we know if this realistic? Some information on that here: https://github.com/compiler-explorer/compiler-explorer/blob/main/docs/AddingALanguage.md

I've always found godbolt links incredibly useful, not just for looking at assembly, but also for sharing code and for quickly prototyping something.

[adlerjohn]

We don't really need a nightly build, do we? We do tag releases, so simply having each release of forc should suffice methinks.

[m-fawaz]

We don't really need a nightly build, do we? We do tag releases, so simply having each release of forc should suffice methinks.

True - as we're tagging releases often, nightlies are probably an overkill.