Added DateTime test, added filetime functions to Catagories, and removed unused variables.

src/core/operations/DateTime.js

@@ -80,13 +80,6 @@ const DateTime = {
     },
 
 
-    /**
-     *@constant
-     *@default
-     */
-    RADIX: ["Decimal", "Hex"],
-
-
     /**
      * Converts a Windows FILETIME to Unix Epoch time.
      *