Jaxtyping v0.1.0

This is a fun release.

• Feature: the holy grail of runtime type checking -- symbolic expressions -- are now supported! For example

  def remove_last(x: f32["dim"]) -> f32["dim-1"]):
    return x[1:]

  (#9)
• Feature: underscore-prefixed names are now treated anonymously, just like _ was before. This allows you to include an anonymous dimension, but still give it some kind of name just for documentation purposes. (#10)
• Fix: multiple+broadcastable dimensions, e.g. *#foo, now precisely matches up with normal broadcasting semantics. (#8)
• Backward incompatibility: the broadcasting annotation # now occurs at the start of the dimension, e.g. #foo, rather than at the end, e.g. foo#.

Full Changelog: v0.0.2...v0.1.0