add explicit relation to New project wizard

[paulvi]

This repo currently is heap of files without any explicit link to New project wizard.

Could you add link to wizard dialog code, that should have link to some of this files.

[paulvi]

See also https://codenvy.uservoice.com/forums/183121-general/suggestions/6861906-https-codenvy-com-new-java-to-create-new-project