This is a real hack but, it works. Because nushell is not posix rvm will not
natively work. This uses a login sub shell to change the ruby version with
bash, it then get the all the relevant environment variables and loads them
into the nushell environment.
This is some investigation in to nushell will work. I will be looking to use
this cross platform, as zsh will not work on windows.
Adds some of the core modules so I don't loose my mind having to relearn mussel
memory. The goal of this is to replicate my use of oh-my-zsh, I think this will
take some time, I have sunk years into the zsh config. The aliases will be the
same, the GOPATH project structure will be replicated and the dir hooks will be
implemeted so my PATH gets setup just as I like it.
