geos: Update to 3.4.2 and rework the packaging

* This updates to the 3.4.2 release and rework the packaging splitting
  the C bindings in another binary package to reduce footprint in
  rootfs; this also moves geos-config to the development package as it
  should.

* Fix -dev installation and upgrade path
  Using 'lib_package' renames the binaries and we need a transitional
  package to be used as upgrade path. This is done using an empty 'geos'
  package which installs the new ones as runtime dependency.

  This same package is used to satisfy -dev dependency of geos package
  allowing for its inclusion into SDK.

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>