[FEA] Stacked line charts about cuxfilter HOT 1 CLOSED

from cuXfilter.sampledata import signals_data
import cuXfilter

cux_df = cuXfilter.DataFrame.from_dataframe(signals_data)

stacked_lines_chart = cuXfilter.charts.cudatashader.stacked_lines(x='Time', y=['a', 'b', 'c', 'd', 'e', 'f', 'g', 'x', 'y', 'z'],
                                                    colors = ["red", "grey", "black", "purple", "pink",
                                                            "yellow", "brown", "green", "orange", "blue"]
                                                    )

d = cux_df.dashboard([stacked_lines_chart])

stacked_lines_chart.view()