Separate Angular Module into Public and Admin

[ginkgomzd]

As found in #494 , the Manage Projects UI is rendered with the public theme.
This is because the CiviCRM Menu (route) for the base-page is configured for public because it is expected that the Opportunity Search is wanted as a public page.

Because the Manage Projects UI is implemented as a route in the same angular module as the Opportunity Search, they must share the public-visibility config.

Solution will probably require three or more separate angular modules, one for Manage, one for Opportunities, and one for shared.

I do know that there was a lot of discussion about packaging of angular modules, so there are probably devils in the details to be flushed out.