Method poll

tests/fastled_core.cpp:517–517

    void enqueue(ChannelDataPtr) override {}
    void show() override {}
    DriverState poll() override { return DriverState::READY; }
    fl::string getName() const override { return fl::string::from_literal("STUB_ADD_REMOVE"); }
    Capabilities getCapabilities() const override {
        return Capabilities(true, true);