Add support for dynamic row height.

[quincyle]

This project uses semver, please check the scope of this pr:

• [ ] #none# - documentation fixes and/or test additions
• [x] #patch# - backwards-compatible bug fix
• [ ] #minor# - adding functionality in a backwards-compatible manner
• [ ] #major# - incompatible API change

CHANGELOG

• Added isDynamicRowHeight API to support dynamic list row height.

[coveralls]

Changes Unknown when pulling dc84c36560c0edfce0168828c67e4b6b25f42bd5 on quincyle:master into on ciena-frost:master.