Add Cr3Decoder for CR3 raw files

This decoder contains the logic to parse a CR3 ISOBMFF file.

Author: cytrinox

fuzz/librawspeed/decoders/TiffDecoders/main.cpp

@@ -25,6 +25,7 @@
 #include "common/RawspeedException.h" // for RawspeedException
 #include "decoders/ArwDecoder.h"      // IWYU pragma: keep
 #include "decoders/Cr2Decoder.h"      // IWYU pragma: keep
+#include "decoders/Cr3Decoder.h"      // IWYU pragma: keep
 #include "decoders/DcrDecoder.h"      // IWYU pragma: keep
 #include "decoders/DcsDecoder.h"      // IWYU pragma: keep
 #include "decoders/DngDecoder.h"      // IWYU pragma: keep

src/librawspeed/decoders/CMakeLists.txt

@@ -5,6 +5,8 @@ FILE(GLOB SOURCES
   "ArwDecoder.h"
   "Cr2Decoder.cpp"
   "Cr2Decoder.h"
+  "Cr3Decoder.cpp"
+  "Cr3Decoder.h"
   "CrwDecoder.cpp"
   "CrwDecoder.h"
   "DcrDecoder.cpp"