Create Project Configurations Manager

[smaugho]

Create Project Configuration Manager. This will be basically a class which will check the requirements for certain Feature, and automatically will configure your project (adding dependencies in gradle, or adding permissions in the manifest).

This will permit really full contained libraries.

For instance you will do:

    $FacebookLogin();

And automatically the configuration manager will check that the application is properly configured to run facebook SDK. All this will make even easier to use Declex Libraries (1 line of code integration).