[492985] Sirius based Properties views support

First iteration:
- support for everything in Ecore except EGenericTypes
- support for any EAnnotations
- support for documentation annotations
- support for genmodel attributes
- link to navigate to generated code
- actions to launch the Java codegen

Bug: 492985
Change-Id: Ib8c9c49777524e1e3f191b38d875cf1f824ba65e