bash completions for xtools

[gt7-void]

There are some zsh completions but not bash completions. Here's a first attempt for some useful commands:

__load_completion xbps

_xi() {
	shift
	_xbps_complete xbps-install "$@"
}

_xls() {
	shift
	_xbps_complete xbps-query "$@"
}

_xq() {
	shift
	_xbps_complete xbps-query "$@"
}

_xrm() {
	shift
	_xbps_complete xbps-remove "$@"
}

complete -F _xi xi
complete -F _xls xls
complete -F _xq xq
complete -F _xrm xrm

I have this file as .local/share/bash-completion/completions/xi and in the same directory symlinks for xls, xq and xrm (the command xrm is from #204 (comment))

For system install it should go into /usr/share/bash-completion/completions/.