Create Error Surface Plots

[juliambr]

Create a function that can do the following:

• input: task, loss function, model class
• optimize the loss function in this configuration
• plot the error surface (x = \theta_1, y = \theta_2, z = empirical risk) and show how the optimizer runs through the space

[cem-ozturk]

i have a code to do it on gradient descent, working on that to visualize it in 3d.
grad_desc.txt

[cem-ozturk]

3d is working now with plot_ly
grad_desc.txt

ps: i have added it as txt file which is not desired but that seems the most convenient way til we decide where to use it