Add completions for Homebrew

dot_config/private_fish/config.fish.tmpl

···
     set -x HOMEBREW_NO_INSTALL_CLEANUP 1
     set -x HOMEBREW_NO_INSTALL_UPGRADE 1
     set -x HOMEBREW_NO_UPDATE_REPORT_NEW 1
+
     eval ({{ $brewPath | quote }} shellenv)
+
+    if test -d ({{ $brewPath | quote }} --prefix)"/share/fish/completions"
+        set -p fish_complete_path ({{ $brewPath | quote }} --prefix)/share/fish/completions
+    end
+
+    if test -d ({{ $brewPath | quote }} --prefix)"/share/fish/vendor_completions.d"
+        set -p fish_complete_path ({{ $brewPath | quote }} --prefix)/share/fish/vendor_completions.d
+    end
 end
+
+
 
 #
 # Add directories to PATH.