1st pass at creating config for NeffBarAnim.html, page is currently broken

Config has sections for all containers and brix on the page.
Need to add data to the config
Need to add configFixup to reference the data
Need to change some brix so their config contains a d3 format string not a d3 format function.
Add datasets to activity config in NeffBarAnim.html
Get the data section of the activity config working

Still needs unit tests. Also added a couple more types of dynamic values:
array
array-element
Unit tests for new functionality in BricLayer

tests were added for:
- new data section in config
- new _array_ dynamic value type
- new _array-element_ dynamic value type

also fixed wrong dynamic value type value in activity schema
Merge pull request #106 from lbondaryk/BricLayer-NeffBarAnim-875

BricLayer support for demo NeffBarAnim.html (story 875)

Mortar support is still needed by that demo page, but that's a different story.