IssueTracker

IdeLibrary currently represents a module dependency and its target which can be a Java Library, an Android Library or another module.

We need to separate split this interface in two ways:

(1) IdeDependency should represent dependency specific data only and IdeLibrary should represent everything else describing the dependency target (a library or a module). Multiple dependencies on the same target can share the target instance since it's properties describes a specific library and it is exactly the same library in all cases.

(2) Currently IdeLibrary represents one of the following: an Android library, a Java library or another module. However, each IdeLibrary property is usually specific to one of these types. We need to introduce IdeAndroidLibrary, IdeJavaLibrary and IdeModuleLibrary and move type specific properties to these interfaces. The same will also applies to dependency interfaces from (1).