feat(bin): add tmuxinator-fzf

Add a script that uses fzf to select and open a tmuxinator project.

bin/tmuxinator-fzf

@@ -0,0 +1,7 @@
+#!/usr/bin/env bash
+
+# Use fzf to select a project to open with tmuxinator.
+
+set -euo pipefail
+
+tmuxinator list -n | tail -n +2 | fzf | xargs tmuxinator start