Fix issues and awesome improvements in surf functionality

[gilbertogalvis]

This PR fix issues and do awesome improvements with surf functionality. surf previous version was very poor. This new version is really awesome. This PR was tested for all examples in https://github.com/plotly/ssim_baselines/tree/main/matlab/code-examples/surface-and-mesh-plots/surf

It is very important to highlight that to use this new functionality, TreatAs optional parameter must set to surf. Example of usage bellow

[X,Y,Z] = peaks(25);
CO(:,:,1) = zeros(25); % red
CO(:,:,2) = ones(25).*linspace(0.5,0.6,25); % green
CO(:,:,3) = ones(25).*linspace(0,1,25); % blue
surf(X,Y,Z,CO);

f = fig2plotly(gcf, 'offline', 0, 'TreatAs', 'surf');

Screenshots of results are shown bellow

Links to Chart-Studio:

https://chart-studio.plotly.com/~galvisgilberto/4210/#/
https://chart-studio.plotly.com/~galvisgilberto/4212/#/
https://chart-studio.plotly.com/~galvisgilberto/4214/#/
https://chart-studio.plotly.com/~galvisgilberto/4216/#/
https://chart-studio.plotly.com/~galvisgilberto/4218/#/
https://chart-studio.plotly.com/~galvisgilberto/4220/#/