Offer opening Godbolt compiler explorer / insights with the code browsed at hand

[whisperity]

Godbolt-CE https://github.com/mattgodbolt/compiler-explorer and CompilerInsight https://github.com/andreasfertig/cppinsights are actively developed by the C++ community to offer a compiler-level look into C/C++ code. Instead of going against the flow by trying to replicate some of the functionality offered by these tools, we should embrace their existence and offer their features. This could potentially save a lot of work for us.

As far as I know, both of these tools can be deployed and sprung up locally (near or on the same machine as the CodeCompass webserver), in case of "sending corporate code to totally random web servers over the internet" is an issue.

CodeCompass should prepare the "translation unit" or "input buffer" and offer to switch over to said tool, where users could delve deep into the offerings.

This does not mean C++-Reparse (#248 and #275) should go away, just that it should be a thing for higher-level or on-demand visualisations that connect better with the vision of CodeCompass, rather than to be a low-level nitty-gritty language lawyering...