Simplify package listing script and standardize workflows

The commit makes the following changes:
 - The package listing script now requires the user specify which package manager
   they're using. This approach resolves the ambiguity if a system has more than
   one package manager (ie: macports & brew)

 - Adds packages for Fedora, RedHat/CentOS, Arch, and OpenSuse

 - Eliminates unecessary code in the package manager script
   (more can be eliminate at the expense of complexity)

 - Made a couple minor fixes to the build script

 - Tried to further "standardize" the workflows as follows:

     - names are Compiler Version (Environment)

     - Sorted them alphabetically in their respective YAMLs

     - Minor spacing adjustment to align values (where it makes sense)

     - Dropped quotes around some of the string values because I'd
       rather our YAML be consistent and propper instead of changing our
       YAML to suite the limitations of an editor (can a different plugin
       or better parser be used?)

     - Added macOS workflows for Homebrew and MacPorts, both ready to
       go and tested, but with the build step just commented out

.gitignore

@@ -36,6 +36,7 @@ aclocal.m4
 autom4te.cache
 config.h
 config.h.in
+config.h.in~
 config.log
 config.status
 config.guess