Fix BlackMisc header includes

* Include only what is used
* Use forward declaration when possible
* Sorted includes

refs #630

src/blackmisc/geo/coordinategeodetic.h

@@ -15,8 +15,16 @@
 #include "blackmisc/blackmiscexport.h"
 #include "blackmisc/geo/latitude.h"
 #include "blackmisc/geo/longitude.h"
+#include "blackmisc/metaclass.h"
+#include "blackmisc/pq/angle.h"
 #include "blackmisc/pq/length.h"
+#include "blackmisc/pq/units.h"
 #include "blackmisc/propertyindex.h"
+#include "blackmisc/valueobject.h"
+#include "blackmisc/variant.h"
+
+#include <QMetaType>
+#include <QString>
 #include <QVector3D>
 #include <array>