Get error `module 'collections' has no attribute 'Iterable'` on Python 3.10

When calling to `minecraft.postToChat()` the interpreter complains that there is no Iterable attribute of the `collections` class.

The stack trace points to tests in `util.py` and `vec3.py` from the mcpi library.

This appears to be because of changes in the Python library at Python 3.3 

https://docs.python.org/3/library/collections.abc.html

