Remove include "qgsapplication.h" from qgswkbptr.h

qgswkbptr.h is included indirectly by a large number of source files.
So this commit does the following:
  - remove #include "qgsapplication.h" from qgswkbptr.h, and copy-paste the swap_endian
    function where it's used.
  - add the missing #include "qgsapplication.h" in other files

The rationale for this change is:
  - qgswkbptr.h doesn't really needs QgsApplication, since it only used swap_endian.
    We don't need to add a fake dependency on QgsApplication on every (indirect) "includers"
    of qgswkbptr.h
 - qgsapplication.h depends on qgsconfig.h which itself changes quite often (on every git op
   at least). Before this change, a 'git commit' would trigger a rebuild of about 3500 files.
   With this change we're down to ~700.

python/core/auto_generated/geometry/qgsabstractgeometry.sip.in

@@ -11,6 +11,7 @@
 
 
 
+
 typedef QVector< QgsPoint > QgsPointSequence;
 typedef QVector< QVector< QgsPoint > > QgsRingSequence;
 typedef QVector< QVector< QVector< QgsPoint > > > QgsCoordinateSequence;

python/core/auto_generated/geometry/qgswkbptr.sip.in

@@ -38,6 +38,7 @@ class QgsConstWkbPtr
 
 
 
+
   public:
     QgsConstWkbPtr( const unsigned char *p /Array/, int size /ArraySize/ );
 

python/core/auto_generated/qgsabstractcontentcache.sip.in

@@ -9,6 +9,7 @@
 
 
 
+
 class QgsAbstractContentCacheEntry
 {
 %Docstring

python/core/auto_generated/qgsapplication.sip.in

@@ -503,7 +503,6 @@ Gets application icon
 Returns whether this machine uses big or little endian
 %End
 
-
     static QString reportStyleSheet();
 %Docstring
 Returns a standard css style sheet for reports.

src/analysis/processing/qgsalgorithmbuffer.h

@@ -22,6 +22,7 @@
 
 #include "qgis.h"
 #include "qgsprocessingalgorithm.h"
+#include "qgsapplication.h"
 
 ///@cond PRIVATE
 

src/analysis/processing/qgsalgorithmcentroid.h

@@ -22,6 +22,7 @@
 
 #include "qgis.h"
 #include "qgsprocessingalgorithm.h"
+#include "qgsapplication.h"
 
 ///@cond PRIVATE
 

src/analysis/processing/qgsalgorithmclip.h

@@ -22,6 +22,7 @@
 
 #include "qgis.h"
 #include "qgsprocessingalgorithm.h"
+#include "qgsapplication.h"
 
 ///@cond PRIVATE
 

src/analysis/processing/qgsalgorithmconvexhull.h

@@ -22,6 +22,7 @@
 
 #include "qgis.h"
 #include "qgsprocessingalgorithm.h"
+#include "qgsapplication.h"
 
 ///@cond PRIVATE
 

src/analysis/processing/qgsalgorithmdifference.h

@@ -19,6 +19,7 @@
 #define SIP_NO_FILE
 
 #include "qgsprocessingalgorithm.h"
+#include "qgsapplication.h"
 
 ///@cond PRIVATE
 

src/analysis/processing/qgsalgorithmdissolve.h

@@ -22,6 +22,7 @@
 
 #include "qgis.h"
 #include "qgsprocessingalgorithm.h"
+#include "qgsapplication.h"
 
 ///@cond PRIVATE
 

src/analysis/processing/qgsalgorithmextractbylocation.h

@@ -22,6 +22,7 @@
 
 #include "qgis.h"
 #include "qgsprocessingalgorithm.h"
+#include "qgsapplication.h"
 
 ///@cond PRIVATE
 

src/analysis/processing/qgsalgorithmextractvertices.h

@@ -22,6 +22,7 @@
 
 #include "qgis.h"
 #include "qgsprocessingalgorithm.h"
+#include "qgsapplication.h"
 
 ///@cond PRIVATE
 

src/analysis/processing/qgsalgorithmintersection.h

@@ -19,6 +19,7 @@
 #define SIP_NO_FILE
 
 #include "qgsprocessingalgorithm.h"
+#include "qgsapplication.h"
 
 ///@cond PRIVATE
 

src/analysis/processing/qgsalgorithmlineintersection.h

@@ -22,6 +22,7 @@
 
 #include "qgis.h"
 #include "qgsprocessingalgorithm.h"
+#include "qgsapplication.h"
 
 ///@cond PRIVATE
 

src/analysis/processing/qgsalgorithmloadlayer.h

@@ -22,6 +22,7 @@
 
 #include "qgis.h"
 #include "qgsprocessingalgorithm.h"
+#include "qgsapplication.h"
 
 ///@cond PRIVATE
 

src/analysis/processing/qgsalgorithmmeancoordinates.h

@@ -22,6 +22,7 @@
 
 #include "qgis.h"
 #include "qgsprocessingalgorithm.h"
+#include "qgsapplication.h"
 
 ///@cond PRIVATE
 

src/analysis/processing/qgsalgorithmmergevector.h

@@ -22,6 +22,7 @@
 
 #include "qgis.h"
 #include "qgsprocessingalgorithm.h"
+#include "qgsapplication.h"
 
 ///@cond PRIVATE
 

src/analysis/processing/qgsalgorithmmultiparttosinglepart.h

@@ -22,6 +22,7 @@
 
 #include "qgis.h"
 #include "qgsprocessingalgorithm.h"
+#include "qgsapplication.h"
 
 ///@cond PRIVATE
 

src/analysis/processing/qgsalgorithmnetworkanalysisbase.h

@@ -26,6 +26,7 @@
 #include "qgsgraph.h"
 #include "qgsgraphbuilder.h"
 #include "qgsvectorlayerdirector.h"
+#include "qgsapplication.h"
 
 ///@cond PRIVATE
 

src/analysis/processing/qgsalgorithmpointonsurface.h

@@ -22,6 +22,7 @@
 
 #include "qgis.h"
 #include "qgsprocessingalgorithm.h"
+#include "qgsapplication.h"
 
 ///@cond PRIVATE
 

src/analysis/processing/qgsalgorithmpromotetomultipart.h

@@ -22,6 +22,7 @@
 
 #include "qgis.h"
 #include "qgsprocessingalgorithm.h"
+#include "qgsapplication.h"
 
 ///@cond PRIVATE
 

src/analysis/processing/qgsalgorithmsimplify.h

@@ -23,6 +23,7 @@
 #include "qgis.h"
 #include "qgsprocessingalgorithm.h"
 #include "qgsmaptopixelgeometrysimplifier.h"
+#include "qgsapplication.h"
 
 ///@cond PRIVATE
 

src/analysis/processing/qgsalgorithmsymmetricaldifference.h

@@ -19,6 +19,7 @@
 #define SIP_NO_FILE
 
 #include "qgsprocessingalgorithm.h"
+#include "qgsapplication.h"
 
 ///@cond PRIVATE
 

src/analysis/processing/qgsalgorithmunion.h

@@ -20,6 +20,7 @@
 #define SIP_NO_FILE
 
 #include "qgsprocessingalgorithm.h"
+#include "qgsapplication.h"
 
 ///@cond PRIVATE