Create a install-deps command for glide

[kdabir]

Currently when user downloads the runner, which happens to be a small download, it completes immediately. But when a glide app is run for the first time, and if user does not already have GAE SDK, then that starts downloading. And it is substantial download which gives user a first impression that glide runner is taking time.

If there is another target that can be run, either automatically or manually by user before the first app is run, then that would help user download all the required components before glide is actually run.

[kdabir]

Currently it downloads on first run of app

[kdabir]

Can think of some post install hook for sdkman or any other script, which can run a sample welcome app which will run glide first time.