vscode: add extra go tools

mac/install/golang.sh: Add in gopkgs and go-outline which the vscode
plugin for go uses. There is work underway to replace some of these
with gopls, see golang/vscode-go#1652.

mac/install/golang.sh

@@ -8,6 +8,10 @@ TOOLS=()
 TOOLS+=( golang.org/x/tools/gopls@latest )
 TOOLS+=( github.com/fatih/motion@latest )
 TOOLS+=( github.com/jstemmer/gotags@master )
+# for vscode until replaced by gopls
+TOOLS+=( github.com/ramya-rao-a/go-outline@latest )
+# for vscode until replace by gopls
+TOOLS+=( github.com/uudashr/gopkgs/v2/cmd/gopkgs@latest )
 TOOLS+=( honnef.co/go/tools/cmd/keyify@master )
 TOOLS+=( honnef.co/go/tools/cmd/staticcheck@latest )