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)

rtengine/refreshmap.h

@@ -21,6 +21,7 @@
 
 #include <glibmm.h>
 
+
 #define FIRST          65535
 #define ALL            65535
 #define TRANSFORM      127
@@ -31,6 +32,8 @@
 #define SHARPENING     2
 #define LUMADENOISE    2
 #define WHITEBALANCE   255
+#define DEMOSAIC       511
+#define DARKFRAME      1023
 #define COLORBOOST     1
 #define COLORDENOISE   1
 #define CROP           16384
@@ -39,6 +42,8 @@
 #define EQUALIZER      3
 #define NONE           0
 
+#define M_PREPROC   512
+#define M_RAW       256
 #define M_INIT      128
 #define M_TRANSFORM 64
 #define M_BLURMAP   32