Indicator and BarSerie should not be responsible for managing constants nor series

[sgflt]

Is your feature request related to a problem? Please describe.
Interface changes made in 1d36ab3
in my opinion break single responsibility principle and cause performance issues, circa 5% slow down.

These methods are not related to BarSerie, but number type used in BarSerie, which should not leak to interface, because it is implementation detail.

    /**
     * @return the related bar series
     */
    BarSeries getBarSeries();

    /**
     * @return the Num of 0
     */
    default Num zero() {
        return getBarSeries().zero();
    }

    /**
     * @return the Num of 1
     */
    default Num one() {
        return getBarSeries().one();
    }

    /**
     * @return the Num of 100
     */
    default Num hundred() {
        return getBarSeries().hundred();
    }

    /**
     * @return the {@link Num Num extending class} for the given {@link Number}
     */
    default Num numOf(Number number) {
        return getBarSeries().numOf(number);
    }

Describe the solution you'd like
Remove these methods form Indicator nad BarSerie interfaces and provide closer encapsulation for used datatype,
which may provide constants ZERO, HUNDRED, ONE etc. in specific data type and save about 5 % of runtime.

BarSerie and Indicator may provide method NumFactory numFactory() for parsing nonconstant values.

From my perspective this proposal also cleans internal implementation flow. From barSerie.giveMeNumber to barSerie.giveMeFactory.giveMeYourNumberWhichMayBeCached.

From User perspective it elimitatest question "Why BarSerie returns numbers?".

[sgflt]

Tests becomes more intuitive:

int i = 20;
List<Bar> data = new ArraList<>();
// close, volume
data.add(new MockBar(ZonedDateTime.now().minusSeconds(i--), 6, 100, numFactory));
data.add(new MockBar(ZonedDateTime.now().minusSeconds(i--), 7, 105, numFactory));
....
data.add(new MockBar(ZonedDateTime.now().minusSeconds(i--), 9, 95, numFactory));
data.add(new MockBar(ZonedDateTime.now().minusSeconds(i--), 11, 110, numFactory));

BarSeries data = new BaseBarSeries(data);
ClosePriceIndicator close = new ClosePriceIndicator(data);

in my 1.0 draft:

var data = new MockBarSeriesBuilder().withNumFactory(numFactory).build();
int i = 20;
data.barBuilder().endTime(ZonedDateTime.now().minusSeconds(i--)).closePrice(6).volume(100).add();
data.barBuilder().endTime(ZonedDateTime.now().minusSeconds(i--)).closePrice(7).volume(105).add();
...
data.barBuilder().endTime(ZonedDateTime.now().minusSeconds(i--)).closePrice(11).volume(110).add();
data.barBuilder().endTime(ZonedDateTime.now().minusSeconds(i)).closePrice(10).volume(95).add();

var close = new ClosePriceIndicator(data);

[sgflt]

Before:

new MockBarSeries(numFunction, 100, 95, 80, 70, 60, 50)

After:

new MockBarSeriesBuilder().withNumFactory(numFactory).withData(100, 95, 80, 70, 60, 50).build()