No error thrown if invalid type provided, silently falls back to `scatter`

If you enter a type for a trace that is not supported in the package you have, Plotly simply falls back to scatter plot. This is incorrect, an error should be thrown to indicate the user entered an invalid type.

In my particular case, I had been using scattergl type with the full plotly.js-dist bundle, then when I switched our project over to plotly.js-finance (https://github.com/plotly/plotly.js/blob/master/dist/README.md#plotlyjs-finance) I thought everything was working correctly as all our test charts appeared correctly. However, I didn't notice plotly.js-finance did not include scattergl, so was in fact falling back to scatter, which had a significant performance penalty I did not notice while testing. I would have much appreciated an error indicating the type I was providing was not available in the partial bundle I was using.

I've made a code pen of the issue here, using a type "aninvalidtype": https://codepen.io/mofojed/pen/pojpVvP

Comienza con la reproducción enlazada de CodePen usando "aninvalidtype" y compara el comportamiento entre el bundle completo de plotly.js-dist y plotly.js-finance, especialmente para el tipo scattergl no disponible. Rastrea cómo se resuelve el tipo de trace seleccionado en los puntos de entrada del paquete. Se considera terminado cuando los tipos no compatibles producen un error en lugar de renderizarse silenciosamente como scatter, con cobertura de regresión para bundles parciales.