Make Crunch compression work correctly on CPU supporting 16 or more threads

Explanation:

Crunch library has been designed to work correctly when using up to 16 threads. Considering that one of those threads is the main thread, the maximum number of helper threads should be set to 15.

Author: alexander-suvorov

bin/crunch_x64.exe

@@ -92,7 +92,7 @@ enum crn_limits {
   cCRNMaxFaces = 6,
   cCRNMaxLevels = 16,
 
-  cCRNMaxHelperThreads = 16,
+  cCRNMaxHelperThreads = 15,
 
   cCRNMinQualityLevel = 0,
   cCRNMaxQualityLevel = 255