Code cleanup and minimal build

A friend @otobrglez made me aware, that my constant experiments made the code base pretty much un-compilable for everyone else, because of all the dependencies I play with. So I went into clean-up mode. I created two branches on github, main and devel.

I will try to keep main branch relatively stabile and easy to compile and do all development and experiments in devel branch from now on.

Go projects otherwise are very simple to compile, there are no build scripts or complex configurations. Flags determine the variation or additional functionalities (and at the same time dependencies) that you are building into executable. More on that soon.

"b_tiny" is more or less the minimal rye. It has only 4 simple dependencies now after cleanup, and will probably only require 2 when I am done.

Here is the full procedure to build tiny Rye executable on a linux system, even if you don't even have golang already installed:

https://github.com/refaktor/rye/blob/main/fresh-build.md

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