Inconsistent behavior of `show` method

[emield12]

Currently, when you call the show method on a FigureResampler object it returns a down sampled version of the figure that does not resample, which looks like a "broken" figure when zooming in. This behavior is inconsistent with standard Plotly figures and could create confusion.
I see two possible solutions to solve this problem:

• Making the behavior consistent with Plotly by returning the original (not down sampled) figure when show is called. Although this could be annoying if you are working with a lot of points and inadvertently call show and crash your kernel/browser as a result.
• Keep the same behavior as now, but throw a warning message. As this might not result in the expected behavior.

[jonasvdd]

I indeed would opt for the second option, mainly due to the disadvantages of the first option, what do you think @jvdd?

[jonasvdd]

Maybe this can also be handled within #104

[jonasvdd]

Documented in FAQ section of #104