sample/frontend/agr-lib/src/lib/grid/agr-engine.ts (16 lines):
	- line 33: unSortColumn?: boolean; //TODO Rename property because unclear what is made
	- line 75: //TODO May be need deep clone that encapsulate
	- line 87: //TODO Write test for logic
	- line 88: //TODO Think about simplify
	- line 200: //TODO Test
	- line 211: //TODO Test
	- line 225: //TODO Test
	- line 233: //TODO Test
	- line 243: //TODO Test
	- line 302: //TODO Test
	- line 311: //TODO Test
	- line 331: //TODO Test
	- line 365: //TODO Test
	- line 377: //TODO Test
	- line 391: //TODO Test
	- line 474: //TODO Test


src/grid/agr-engine.ts (6 lines):
	- line 29: unSortColumn?: boolean; //TODO Rename property because unclear what is made
	- line 71: //TODO May be need deep clone that encapsulate
	- line 83: //TODO Write test for logic
	- line 84: //TODO Think about simplify
	- line 357: //TODO Test
	- line 453: //TODO Test