@Override
    public boolean equals(@Nullable final Object obj) {
        if (!(obj instanceof Value)) {
            return false;
        }
        return this.compareTo((Value) obj) == 0;
    }
Encapsulates a single value for handling in {@link Formula}. Provides e.g. type conversions.
<br>
Supports raw values of type String, CharSequence, Double, Long, BigInterger and BigDecimal
main/src/main/java/cgeo/geocaching/utils/formulas/Value.java