Allow read to take a list of columns

[delucchi-cmu]

Adds plumbing and testing explicitly for parquet files. Other file types can follow.

[codecov]

Codecov Report

Patch coverage: 100.00% and no project coverage change.

Comparison is base (a600c91) 100.00% compared to head (cef811a) 100.00%.

Additional details and impacted files

@@            Coverage Diff            @@
##              main       #73   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files            8         8           
  Lines          628       636    +8     
=========================================
+ Hits           628       636    +8     

Impacted Files	Coverage Δ
src/tables_io/types.py	100.00% <ø> (ø)
src/tables_io/ioUtils.py	100.00% <100.00%> (ø)
src/tables_io/testUtils.py	100.00% <100.00%> (ø)

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