Move non-CV functionality from core.hpp to separate utility.hpp header

modules/java/generator/config/core.filelist

@@ -1,2 +1,3 @@
 include/opencv2/core.hpp
+include/opencv2/core/utility.hpp
 ../java/generator/src/cpp/core_manual.hpp

modules/java/generator/src/cpp/common.h

@@ -20,6 +20,8 @@
 #  define LOGD(...)
 #endif
 
+#include "opencv2/core/utility.hpp"
+
 #include "converters.h"
 
 #include "core_manual.hpp"

modules/java/generator/src/cpp/core_manual.cpp

@@ -1,6 +1,8 @@
 #define LOG_TAG "org.opencv.core.Core"
 #include "common.h"
 
+#include "opencv2/core/utility.hpp"
+
 static int quietCallback( int, const char*, const char*, const char*, int, void* )
 {
     return 0;