Replace lazy() with JIT parsing

[Pomax]

Currently, lazy(...) will lazy load in arrays and complex structures as a whole, which means that while we don't take up useless memory initially, we will be taking up a lot more memory than necessary to service data extraction calls: cmap subformat 4, for example, will load the start/end/delta/range arrays into memory when accessed, rather than binding an array-like that does JIT extraction instead.

Is that disastrous? No.

Is it kind of silly? Yes.