* feat(utils): first impl of own commands runner
* refactor(gotests): uses own runner instead of vendored
* refactor(utils): back to plenary.job
* refactor(gotests): use new runner, clean code
* fix(runner): now it returns output correctly
* refactor(iferr): use vim.system
i have tried to use _utils.runner, but i can't figure out how to make `< file.go` for the command
* refactor(impl): use new runner
* refactor(installer): use new runner
* refactor(struct_tags): use new runner
* refactor: commands such as :GoGet runs with new runner
* refactor: throw errors in more lua way, i think
* refactor(utils): notify now has title
* refactor: use more correct way of notifying
* refactor(runner): write error message on error
