default BigInteger getBigInteger(byte[] b, int size, boolean signed) {
		return getBigInteger(b, 0, size, signed);
	}
Get the value from the given byte array using the specified size.

@param b array containing bytes
@param size number of bytes to use from array at offset 0
@param signed boolean flag indicating the value is signed
@return {@link BigInteger} with value
@throws IndexOutOfBoundsException if byte array size is
less than size
Ghidra/Framework/Generic/src/main/java/ghidra/util/DataConverter.java