luaPackages: Replace all rockspec packages with generated ones

luaPackages replaced by generated ones:
- bit32
- compat53
- cqueues
- luacyrussasl -> cyrussasl (luarocks name)
- luaexpat
- luadbi -> luadbi front-end module + separate backend modules
  luadbi-{mysql,postgresql,sqlite3}
- luafilesystem
- luaossl
- luasec
- luasocket
- luastdlib -> stdlib (luarocks name)
- lrexlib -> lrexlib-pcre (we already have lrexlib-gnu and
  lrexlib-posix, lrexlib-pcre however appears to be the variant used in
  mudlet, which is the only current dep in nixpkgs)
- luasqlite -> luasql-sqlite3 (luarocks name)
- lfs -> luafilesytem (we literally had two manually written
  luafilesystem expressions, under different names)

Changes and additions to overrides to generated luarocks packgaes,
including:
- busted: Install bash completions along with the zsh ones
- cqueues:
    - Perform minor surgery on the rockspec to allow using a single
      rockspec to build for all supported Lua versions
    - Add a patch by @vcunat to work around a build issue
- luuid: Wrote a tiny patch to allow for Lua 5.1/Luajit compatibility
- General changes:
    - Sorted the packages
    - Attempted to make the formatting consistent
    - Preferenced `.override` instead of `.overrideAttrs` wherever
      possible

Minor changes to other packages to adjust for the Lua package changes:
- luakit expression simplified
- prosody expression simplified; but users will now need to specify the
  luadbi backend module they intend to use in withExtraLibs
- knot-resolver inputs correctd
- mudlet inputs corrected (although this package was and should still be
  broken)

pkgs/servers/dns/knot-resolver/default.nix

@@ -80,7 +80,7 @@ wrapped-full = runCommand unwrapped.name
     nativeBuildInputs = [ makeWrapper ];
     buildInputs = with luajitPackages; [
       luasec luasocket # trust anchor bootstrap, prefill module
-      lfs # prefill module
+      luafilesystem # prefill module
       http # for http module; brings lots of deps; some are useful elsewhere
     ];
     preferLocalBuild = true;