Merge with e190c52ab7861c68762aaa552f3dc0f59fe2e225 from default

This revision compiles and runs on Win7x64- but further evaluation is necessary.
There may be an issue with cmake step -After cmake I had to copy rtgui/version.h & config.h into out of source build /rtgui folder.
Additional notes:
- ImProcFunctions::hsv2rgb01   -> this likely need to be added to color.h & color.cc
- Use of array2D should be verified in NR code
- compilation warning for rtengine::RawImageSource::isWBProviderReady()

rtgui/hlrec.cc

@@ -77,7 +77,7 @@ void HLRecovery::read (const ProcParams* pp, const ParamsEdited* pedited) {
 void HLRecovery::write (ProcParams* pp, ParamsEdited* pedited) {
 
     if (pedited) {
-        pedited->hlrecovery.method    = method->get_active_row_number()!=3;
+        pedited->hlrecovery.method    = method->get_active_row_number()!=4;
         pedited->hlrecovery.enabled   = !enabled->get_inconsistent();
     }