* Added regex code
* Added regex based method to remove all LIKE queries
* Made regex readonly
* Added plugin interface and code to execute slower plugins after the fast plugins
* Added scoring for indexer and added statement to remove old indexer results
* Refactored from master and added thread sleep for debugging
* Removed lock from indexer plugin and added checks to avoid exceptions
* Remove debug statement
* Removed selected index update and fixed tests not building
* Added tests
* Removed scoring
* Removed lock
* Resolve merge conflicts
* Moved dispatcher code to function and add parallel foreach loop
* Removed DelayedExec metadata and modified QueryForPlugin to run only delayed exec plugins when bool param is true
* Removed metadata from plugin.json
* Added fast observable collection
* Updated to use 1 collection changed event per query
* Moved result updating to background thread
* Changed collapsed to hidden for virtualization
* Moved all token cancellations inside try catch
* Fixed freeze on deleting first letter
* nit fixes
* Moved update logic to plugin result loop
* Updated doc comment for AddResults function
* fix result clear on empty query
* Added functionality for left/right key navigation
* Update Behviour of left/right navigation
* Code cleanup
* Null check for results VM
* Added tests for results view model
* Update test namings
