Uproot

First version with some object types (STL collections).

Go back to the old method of setting version.

The VERSION_INFO file needs to be included in the package to make it importable with setup.py.

Also fixed some problems with build-test.yml.

Version of uproot4 for next Monday's HATS.

Successfully reading TTree data:

* arrays and jagged arrays
* simpler Interpretation machinery (`basket_array` and `finalized_array` only), entry slicing still works
* aliases and computable expressions
* parallel multipart download → decompression pipeline
* caching
* backend libraries with library-dependent array grouping (dict of NumPy arrays, Awkward record array, Pandas DataFrame, etc.)

Not done:

* all the Interpretation classes, particularly objects and strings
* objects as record arrays
* iteration (in a TTree or across files)
* lazy arrays in Awkward
* branch → multiple columns in Pandas (e.g. fixed-width arrays and leaf-lists)
* extensive testing

Successfully reading in histograms (dynamically generated classes) and TTrees (custom/streamlined reading). Also defined behaviors as a counterpoint to models.