Support color scale from data

[thomas-saigre]

def plot_scatter_3d():
    t = np.linspace(0, 20, 100)
    x, y, z = np.cos(t), np.sin(t), t

    fig = go.Figure(data=[go.Scatter3d(
        x=x,
        y=y,
        z=z,
        mode="markers",
        marker=dict(
            size=12,
            color=z,                # set color to an array/list of desired values
            colorscale='Viridis',   # choose a colorscale
            opacity=0.8,
            symbol="diamond"
        ),
    )])
    fig.update_layout(margin=dict(l=0, r=0, b=0, t=0))
    return fig

with this code, the color of the trace is an array [ 0. 0.2020202 0.4040404 0.60606061 0.80808081 1.01010101 1.21212121 1.41414141 1.61616162 1.81818182... which is not supported yet.