Added dark frame subtraction

Moved debayer and preprocessing parameters to class ProcParams for every single image.
Added tab RAW for changing those parameters.
Progress bar shows only load step (work to do)

rtgui/paramsedited.h

@@ -222,6 +222,21 @@ class EqualizerParamsEdited {
         bool c[8];
 };
 
+class RAWParamsEdited {
+
+    public:
+        bool ccSteps;
+        bool dmethod;
+        bool dcbIterations;
+        bool dcbEnhance;
+        bool caCorrection;
+        bool greenEq;
+        bool hotDeadPixel;
+        bool linenoise;
+        bool darkFrame;
+        bool dfAuto;
+};
+
 class ExifPairEdited {
 
     public:
@@ -261,6 +276,7 @@ class ParamsEdited {
         ResizeParamsEdited            resize;         
         ColorManagementParamsEdited   icm;            
         EqualizerParamsEdited         equalizer;
+        RAWParamsEdited               raw;
         std::vector<ExifPairEdited>   exif;             
         std::vector<IPTCPairEdited>   iptc;