Add vim plugin to open file to specified file instead of failing

When given a request like `v file-grep-found:32`

Reportedly it will only work when vim/nvim is already open, but that should be
most of the time for me.

https://github.com/wsdjeg/vim-fetch

Via https://www.reddit.com/r/neovim/comments/u55d5i/is_it_possible_to_goto_certain_line_number_when/

Searched for: nvim go to line if colon line number appended

configuration.nix

@@ -65,6 +65,7 @@
     thunderbird
     transmission_4-qt
     trashy
+    vimPlugins.vim-fetch
     vimPlugins.vim-wayland-clipboard
     wget
     whois