* Added tests to create/get a task with skeletons
* Added some dummy data for tests
* Added a couple of tests
* Aborted extra changes
* Added a couple of put tests
* Removed extra lines
* Added test to check object state logic for complex objects
* Updated eslint config file
* Fixed config
* Removed extra space
* Fixed lint-staged config
* Drawn z-order switcher
* Z layer was added to state
* Added ZLayer API method cvat-canvas
* Added sorting by Z
* Displaying points in top
* Removed old code
* Improved sort function
* Drawn a couple of icons
* Send to foreground / send to background
* Updated unit tests
* Added unit tests for filter parser
* Removed extra code
* Updated README.md