Wizard cannot generate viewer extension

As a	CEP developer
I would like to	create a new viewer using the viewer
So that	I can forget about the CMake and plugin management technicalities and focus on the development of a new viewer

Description / Overview

camitk-wizard is not aware of the new viewer extension. Therefore there is no GUI to create the skeleton of a new viewer extension (although cepgenerator is able to do it from an XML coreschema document)

Hints

Use the current wizard GUI parts that deal with the creation of action/component extension to add a viewer extension GUI

Acceptance tests

• As a user I can run the wizard to create a new CEP that has "myviewer" viewer extension
• once the source code is generated, it can be built and is recognized/loaded as a proper extension in camitk-config and camitk-im
• As a user I can run the wizard to create a new CEP that has an action that can use the "myviewer" extension
• once the source code is generated, it can be built and is recognized/loaded as a proper extension in camitk-config and camitk-im

Track

Misc

See MR !145 (merged)