Revert "Merge pull request #47 from lioncash/remove-stringfromint"

Breaks Android build.

This reverts commit 12d026c544, reversing
changes made to 6d678490f5.

Source/Core/Common/StringUtil.cpp

@@ -185,6 +185,13 @@ bool TryParse(const std::string &str, bool *const output)
 	return true;
 }
 
+std::string StringFromInt(int value)
+{
+	char temp[16];
+	sprintf(temp, "%i", value);
+	return temp;
+}
+
 std::string StringFromBool(bool value)
 {
 	return value ? "True" : "False";