First checks to see if `asdf` is installed. If it is, checks to see if either of
the plugins ( `golang` or `go-sdk` ) that install a version of Go have an
installed version. If they do, use that version.
If `asdf` isn't installed, check the `go.mod` file. If in a folder that has a
`go.mod` or a parent folder has a `go.mod`, check that file for the Go version.
Lastly, check if there's a `go` executable on the current path. If there isn't
set a flag so that the go version will be printed out in red rather than blue.
* Add FNM as an alternative to NVM
* Made the __bobthefish_prompt_nvm generic for nvm and fnm
* Hide errors on node_manager current
* Check for color_nvm and set color_node based on that
- Improve performance significantly in the base case (i.e. when git or something isn't slowing it down anyway).
- Make `bobthefish_display_colors` a non-underscore function. It's meant for public use :)
- Support previewing _different_ color schemes via `bobthefish_display_colors`. Pass a color scheme name, or `--all` to preview everything.
- Make color overrides a bit fishier: use a `bobthefish_colors` function to override color schemes, rather than declaring a whole pile of variables.
- Add support for a base color scheme in `bobthefish_colors`, in case you don't want to override everything.
- Add a deprecation notice with upgrade instructions for users with old-style custom color schemes.