Split examples in wayland-ivi-extension in to separate package

Currently the wayland-ivi-extension recipe "silently" installs a bunch of example applications. You have to dig deep to figure this out.

wayland-ivi-extension/1.13.0-r0/package$ tree
.
└── usr
    ├── bin
    │   ├── EGLWLInputEventExample
    │   ├── EGLWLMockNavigation
    │   ├── layer-add-surfaces
    │   ├── LayerManagerControl
    │   ├── multi-touch-viewer
    │   └── simple-ivi-share

I suggest that we split up the examples in to a separate package. Example:

• wayland-ivi-extension (contains the core libraries etc)
• wayland-ivi-extension-examples (contains the examples)

That way one can choose if it is desired to install the examples and it is explicit and makes it obvious that there are example applications available.