allow expanding a row when it is clicked

[jbetancur]

Closes #248

[codecov]

Codecov Report

Merging #279 into master will increase coverage by 0.76%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master     #279      +/-   ##
==========================================
+ Coverage   98.49%   99.25%   +0.76%     
==========================================
  Files          41       41              
  Lines         399      404       +5     
  Branches       84       86       +2     
==========================================
+ Hits          393      401       +8     
+ Misses          5        3       -2     
+ Partials        1        0       -1

Impacted Files	Coverage Δ
src/DataTable/DataTable.js	100% <ø> (ø)	⬆️
src/DataTable/propTypes.js	87.5% <ø> (+12.5%)	⬆️
src/DataTable/TableRow.js	100% <100%> (+5.4%)	⬆️

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