This commit adds 187 packages from Hex.pm and documents 100 more that
could not be imported for various reasons. The packages where generated
by hex2nix.
Building Hex packages is a superset of building with rebar3. There is no
need to force folks that use rebar3 but not hex to build with hex. This
commit seperates the rebar3 specific bits and the hex specific bits into
seperate functions that can be used independently.
The buildErlang function is broken and and leads Engineers down a wrong
path. For vanilla erlang that doesn't user rebar3, its better to simply
use `stdenv.mkDerivation` along with a set setupHook then the existing
functionality.
This commit moves all the hex based packages to a single namespace. It
also moves all the packages to a single file. This is in preparation
for the move to a system to generate the hex packages from the hex
package store.
There are some packages on Hex which have custom hex-specific names, but
inside there's a base project name.
Remove most packages andadd ibrowse, meck, jiffy
