bundle: auto-tap formulae or casks in brew bundle

When you `brew install org/tap/formula-name`, it automatically taps the
repo if not present. However `brew bundle` doesn't do this. This changes
`brew bundle install` to work the same way as `brew install`.

Author: gibfahn

Library/Homebrew/bundle/formula_installer.rb

@@ -77,6 +77,11 @@ def install!(preinstall: true, no_upgrade: false, verbose: false, force: false)
       end
 
       def install_change_state!(no_upgrade:, verbose:, force:)
+        if (tap_with_name = Tap.with_formula_name(@full_name))
+          tap, = tap_with_name
+          tap.ensure_installed!
+        end
+
         return false unless resolve_conflicts!(verbose:)
 
         if installed?