Merged PR 212: Optimize FindChildrenById from O(n) to O(1)

Optimize FindChildrenById from O(n) to O(1):
- Deprecate FindContainerByIdDFS
- Container: Replace Children to string[]
- Add HashMap to IHistoryState that contains all containers

To access a container by id now cost O(1) without any additional cost

+ Implement CICD for SVGLibs

public/svgld-settings.d.ts

@@ -0,0 +1,4 @@
+
+export declare const API_FETCH_URL: string;
+export declare const API_SET_CONTAINER_LIST_URL: string;
+export declare const API_GET_FEEDBACK_URL: string;