Color bar shown by default on heat maps

[xarico10]

When plotting any chart that plotly assumes as a heat map, the color bar is printed by default. In MATLAB, isn't printed by default and to do so it it's necessary to use a colorbar command.

For example:

C = [0 2 4 6; 8 10 12 14; 16 18 20 22];
imagesc(C)

fig2plotly(gcf, 'offline', false);

Expected and generated (https://chart-studio.plotly.com/~xarico10/914/#/) plots:

Case where the color bar is intended to be shown:

C = [0 2 4 6; 8 10 12 14; 16 18 20 22];
imagesc(C)
colorbar;

[gilbertogalvis]

fixed