Misc. typos

Found via `codespell` 
+ removed rtengine/dcraw.patch per discussion in https://github.com/Beep6581/RawTherapee/pull/4395

rtengine/color.h

@@ -1372,7 +1372,7 @@ public:
     * @param CC chroma before [0 ; 180]
     * @param corectionHuechroma hue correction depending on chromaticity (saturation), in radians [0 ; 0.45] (return value)
     * @param correctlum hue correction depending on luminance (brightness, contrast,...), in radians [0 ; 0.45] (return value)
-    * @param munsDbgInfo (Debug target only) object to collect informations
+    * @param munsDbgInfo (Debug target only) object to collect information
     */
 
 #ifdef _DEBUG
@@ -1772,7 +1772,7 @@ public:
         //hr=translate Hue Lab value  (-Pi +Pi) in approximative hr (hsv values) (0 1) [red 1/6 yellow 1/6 green 1/6 cyan 1/6 blue 1/6 magenta 1/6 ]
         // with multi linear correspondances (I expect there is no error !!)
         double hr = 0.0;
-        //allways put h between 0 and 1
+        //always put h between 0 and 1
 
         if      (HH >= 0.f       && HH < 0.6f    ) {
             hr = 0.11666 * double(HH) + 0.93;    //hr 0.93  1.00    full red