Move QmlProfiler specific files from qmldebug to qmlprofiler

These file were not used anywhere else and had no business to be in
qmldebug to begin with. Moving them allows us to drop a number of
namespace qualifications and forces us to rename a few local symbols
in other classes in order to avoid name clashes.

Change-Id: I658ed455eec027cbaddacf2980d2ea6827ae6205
Reviewed-by: Christian Kandeler <christian.kandeler@theqtcompany.com>

src/plugins/qmlprofiler/qmlprofilertraceview.cpp

@@ -68,8 +68,6 @@
 
 #include <math.h>
 
-using namespace QmlDebug;
-
 namespace QmlProfiler {
 namespace Internal {