This demo showcases how the multiple resources are grouped as well as how the events are portrayed in timeline view layouts.
                        In the timeline view, each row depicts a single resource whereas in vertical views, each resource are grouped parallelly
                        as columns. Here, the resource grouping follows the tree-view like hierarchical grouping structure and can contain
                        any level of child resources. In this sample, we have used two level hierarchy, where the
                        PROJECT 1 and
                        PROJECT 2 are the parent level and the
                        development and
                        testing are child level resources which are defined using the
                        resources property. They are grouped in layout by making use of the
                        group property and its order of grouping depends on the order of names passed onto the
                        resources option within
                        group.
                    
                        Also, the colors defined for the child level resources will get applied to the events of those resources by default. In case,
                        if the colors of parent level needs to be applied to those child events, then it is necessary to define the
                        resourceColorField option within the
                        eventSettings property with the parent level resource name value.