Reorg Ideas

[ryanlevy]

• Switch to single function with function as input i.e. itensornetwork(typeof(sinh),...). User inputs a completely black box function: do TCI. User inputs something `Taylor seriesable', 'Fourier transformable' then we work in that basis.
• func to take fourier modes?'
• higher order stencils
• MPS + surgery
• name change to numerical analysis?
• project down to less bits (plot on a smaller grid)
• functioninds ala siteinds
• Have the user input the domain [a, b] but we will always transform down to the domain [0,1] behind the scenes

[ryanlevy]

FunctionNetwork{V,TN.AbstractTN}
itn: TN
bitmap: vector{vector{V}}