Added vim plugins

roles/iohk.nix

@@ -32,4 +32,9 @@
 
   virtualisation.docker.enable = true;
 
+  #services.postgresql = {
+  #  enable = true;                  # Ensure postgresql is enabled
+  #  package = pkgs.postgresql_10;   # Set the required version, if needed
+  #};
+
 }

roles/vim.nix

@@ -216,8 +216,10 @@ vim_configurable.customize {
       vim-airline-themes    # Collection of themes for airline
       vim-colorschemes      # Collection of ViM colour schemes
       vim-nix               # Support for writing Nix expressions in vim
-      vim-polyglot
+      vim-addon-nix         # Scripts assisting writing .nix files
+      vim-polyglot          # A solid language pack for Vim
       vimproc               # Interactive command execution required by ghc-mod-vim
+      #youcompleteme         # A code-completion engine for Vim - See nixpkgs issue #64048
     ];
     # manually loadable by calling `:packadd $plugin-name`
     # opt = [ phpCompletion elm-vim ];