public Builder addChildren(List<ModuleDescriptor> children) {
			this.children.addAll(children);
			return this;
		}
Add the list of children to the list of sub modules. This only applies if
this builder is for a composite module.

@param children sub modules
@return this builder object

@see org.springframework.xd.module.ModuleDescriptor#children
spring-xd-module/src/main/java/org/springframework/xd/module/ModuleDescriptor.java