Add dependency on openscenegraph-plugin-osgearth to qgis-plugin-globe.

QGIS crashes when using the Globe plugin if this package is not installed,
as reported in QGIS issue #9818 [0] and Debian Bug #808817 [1].

[0] https://hub.qgis.org/issues/9818
[1] https://bugs.debian.org/808817

Author: sebastic

debian/control.in

@@ -340,6 +340,7 @@ Architecture: any
 Depends:
  qgis (= ${binary:Version}),
  qgis-plugin-globe-common (= ${source:Version}),
+ openscenegraph-plugin-osgearth,
  ${shlibs:Depends},
  ${misc:Depends}
 Description: OSG globe plugin for QGIS