Brainstorm for more methods

[mrjacobbloom]

• [x] getAllBlocks - ignores shadow blocks?
• [x] getAllInputs
• [x] getInputsOfType(string-all-text/number/color/boolean)
• [x] a way to get inputs from an existing array of nodes
• [x] getBlocksOfShape(stack/etc...) - I have no idea how to go about this, I guess I'd have to look at the path shapes themselves.
• [x] a generic helper method that takes 2 arrays and outputs the common items (does JS not already have that?) - no longer relevant now that we're mostly using classes
• [x] a method that adds shape and category classes to each block automatically. Or maybe not even a method, maybe it happens every time onChange runs, Maybe have an option to enable/disable in the constructor

anyone else--feel free to suggest more in the comments below

[mrjacobbloom]

could find shape by counting the number of points in the path

those numbers will be different depending on horizontal/vertical mode.

edit: done with that

[mrjacobbloom]

all done!