Updates to tile

[Blackbaud-PatrickOFriel]

Expose isCollapsedChange and document tile and tile dashboard
properties and events

[Blackbaud-PatrickOFriel]

#916 #917

[codecov-io]

Codecov Report

❗ No coverage uploaded for pull request base (master@8b28768). Click here to learn what that means.
The diff coverage is 100%.

@@           Coverage Diff           @@
##             master   #966   +/-   ##
=======================================
  Coverage          ?   100%           
=======================================
  Files             ?    304           
  Lines             ?   5545           
  Branches          ?    698           
=======================================
  Hits              ?   5545           
  Misses            ?      0           
  Partials          ?      0

Impacted Files	Coverage Δ
src/modules/tiles/tile/tile.component.ts	100% <100%> (ø)

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