Method update

src/fl/math/filter/filter.h:426–426

    MovingAverage() FL_NOEXCEPT = default;
    explicit MovingAverage(fl::size capacity) : mImpl(capacity) {}
    FASTLED_FORCE_INLINE T update(T input) { return mImpl.update(input); }
    FASTLED_FORCE_INLINE T value() const { return mImpl.value(); }
    FASTLED_FORCE_INLINE void reset() { mImpl.reset(); }
    FASTLED_FORCE_INLINE bool full() const { return mImpl.full(); }