Add the *.ui files, the Makefiles and other headers to subsurface.files

Makes it easier to open them using Ctrl+k in Qt Creator.

Signed-off-by: Thiago Macieira <thiago@macieira.org>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Fix compilation: error: ‘GeoDataDocument’ does not name a type

Signed-off-by: Thiago Macieira <thiago@macieira.org>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>