GeoView beta 2

What's Changed

• Better separation between Core and Molecule by @labordep in #22
• Remove deprecated classes and method. by @labordep in #25
• Factoring and tooling for adding new kind of Layers. by @labordep in #26
• Create layer event to request repaint in case of internal layer stuff… by @labordep in #27
• Refactoring of repaint and bltask management. by @labordep in #28
• Dev pla by @labordep in #29
• Refactoring. by @labordep in #30
• Renaming of graphic layer. by @labordep in #31
• Fix layer visibility management (drawing and picking). by @labordep in #32
• Considere SelectionManager changes. by @labordep in #33
• Packages cleaning. by @labordep in #35
• Add DImage into default GeoView process datas by @labordep in #36
• View and layers: Send a context of changes when request an model update. by @labordep in #37
• Dev pla by @labordep in #38

Full Changelog: beta1...beta2