libssh: package up the examples
libssh: package up the examples

The examples get built by default, but the build system doesn't provide
a way to get them installed, so we do it manually. Also add some
boilerplate to make packageqa (almost) happy - the exception is
native:libssh, but there's already a comment in cmake.inc (meta/core)
about packageqa complaining about missing libgcc-s on native.

oe-lite/base,oe-lite/base,oe-lite/base,oe-lite/base,oe-lite/base,oe-lite/base