Add emulation for Arrays methods compare, equals, mismatch

[zbynek]

These variants are currently missing:

java.util.Arrays#compare(boolean[], int, int, boolean[], int, int)\
java.util.Arrays#compare(byte[], byte[])\
java.util.Arrays#compare(byte[], int, int, byte[], int, int)\
java.util.Arrays#compare(boolean[], boolean[])\
java.util.Arrays#compare(Object[], int, int, Object[], int, int, Comparator)\
java.util.Arrays#compare(double[], int, int, double[], int, int)\
java.util.Arrays#compare(Comparable[], Comparable[])\
java.util.Arrays#compare(Comparable[], int, int, Comparable[], int, int)\
java.util.Arrays#compare(int[], int, int, int[], int, int)\
java.util.Arrays#compare(Object[], Object[], Comparator)\
java.util.Arrays#compare(int[], int[])\
java.util.Arrays#compare(long[], long[])\
java.util.Arrays#compare(long[], int, int, long[], int, int)\
java.util.Arrays#compare(float[], float[])\
java.util.Arrays#compare(float[], int, int, float[], int, int)\
java.util.Arrays#compare(double[], double[])\
java.util.Arrays#compare(char[], int, int, char[], int, int)\
java.util.Arrays#compare(char[], char[])\
java.util.Arrays#compare(short[], int, int, short[], int, int)\
java.util.Arrays#compare(short[], short[])\
java.util.Arrays#equals(double[], int, int, double[], int, int)\
java.util.Arrays#equals(boolean[], int, int, boolean[], int, int)\
java.util.Arrays#equals(Object[], int, int, Object[], int, int, Comparator)\
java.util.Arrays#equals(Object[], Object[], Comparator)\
java.util.Arrays#equals(Object[], int, int, Object[], int, int)\
java.util.Arrays#equals(float[], int, int, float[], int, int)\
java.util.Arrays#equals(int[], int, int, int[], int, int)\
java.util.Arrays#equals(long[], int, int, long[], int, int)\
java.util.Arrays#equals(byte[], int, int, byte[], int, int)\
java.util.Arrays#equals(char[], int, int, char[], int, int)\
java.util.Arrays#equals(short[], int, int, short[], int, int)\
java.util.Arrays#mismatch(short[], int, int, short[], int, int)\
java.util.Arrays#mismatch(int[], int[])\
java.util.Arrays#mismatch(boolean[], int, int, boolean[], int, int)\
java.util.Arrays#mismatch(long[], int, int, long[], int, int)\
java.util.Arrays#mismatch(long[], long[])\
java.util.Arrays#mismatch(int[], int, int, int[], int, int)\
java.util.Arrays#mismatch(byte[], int, int, byte[], int, int)\
java.util.Arrays#mismatch(boolean[], boolean[])\
java.util.Arrays#mismatch(byte[], byte[])\
java.util.Arrays#mismatch(char[], char[])\
java.util.Arrays#mismatch(char[], int, int, char[], int, int)\
java.util.Arrays#mismatch(short[], short[])\
java.util.Arrays#mismatch(Object[], Object[])\
java.util.Arrays#mismatch(Object[], int, int, Object[], int, int)\
java.util.Arrays#mismatch(Object[], Object[], Comparator)\
java.util.Arrays#mismatch(Object[], int, int, Object[], int, int, Comparator)\
java.util.Arrays#mismatch(float[], float[])\
java.util.Arrays#mismatch(float[], int, int, float[], int, int)\
java.util.Arrays#mismatch(double[], double[])\
java.util.Arrays#mismatch(double[], int, int, double[], int, int)\