add settings dialogs for

- IR settings (palette, emissivity, reflected temp)
 - UI setting (en-/disable UI features like palette drawing, crosshairs, bat state)
 - visual light camera settings (opacity, scaling, X/Y offset)
make picture shots be saved in environments default "Pictures/" folder

plank.h

@@ -1,12 +1,23 @@
 // -- define Flir calibration values ---------------
 // exiftool -plan* FLIROne-2015-11-30-17-26-48+0100.jpg 
 
+#if 0
 #define  PlanckR1  16528.178
 #define  PlanckB  1427.5
 #define  PlanckF  1.0
 #define  PlanckO  -1307.0
 #define  PlanckR2  0.012258549
 
+#define  TempReflected 20.0     // Reflected Apparent Temperature [°C]
+#endif
+
+// read from my camera, are these hardware depedent?
+#define  PlanckR1  18417.0
+#define  PlanckB  1435.0
+#define  PlanckF  1.0
+#define  PlanckO  -1656.0
+#define  PlanckR2  0.0125
+
 #define  TempReflected 20.0     // Reflected Apparent Temperature [°C]
 
 // 0.01 to 0.99 on the emissivity scale.
@@ -15,4 +26,11 @@
 // (0.6 or greater depending on the surface condition and the amount of oxidation).
 // Most flat-finish paints are around 0.90, while human skin and water are about 0.98.
 
-#define  Emissivity 0.95  // Emissivity of object
+// Emissivity of object
+// defaults from app:
+// matte		0.9
+// half matte	0.8
+// half shiny	0.6
+// shiny		0.3
+#define  Emissivity 0.90
+