Enhance knowledge base about Eclipse plugins creations (RCP)

[ymeine]

Eclipse Rich Client Platform (RCP) is a huge thing to digest.

This is the whole framework to build applications based on their corresponding engine. An application is a set of plugins. Some handle the GUI, others different stuff.

So to build a component - i.e. a plugin - of an Eclipse RCP application, the same framework is used.

However, the documentation is big and not that clear. Sometimes there is a lack of details. Also, that would be good to have wrapping up schemata, explaining the architecture of all the components.

Since what we are building is specific - source code edition - we should also explain this more precisely. There's a whole architecture around text editors, source viewers, documents management, edition services, ...