Merged PR 173: Implements API methods through right click + more (read desc)

- Implements API methods through right click
- Refactor events
- Refactor usage of setHistory and setHistoryCurrentStep into a single function
- Update ContainerOperations documentations
- Added AddContainers in order to add multiple containers + refactor AddContainer to use it
- Fix regression
- Fix AddContainer at index

src/Interfaces/IAvailableContainer.ts

@@ -2,6 +2,7 @@
 import React from 'react';
 import { AddMethod } from '../Enums/AddMethod';
 import { XPositionReference } from '../Enums/XPositionReference';
+import { IAction } from './IAction';
 import { IMargin } from './IMargin';
 
 /** Model of available container used in application configuration */
@@ -20,5 +21,6 @@ export interface IAvailableContainer {
   CustomSVG?: string
   DefaultChildType?: string
   Style?: React.CSSProperties
+  Actions?: IAction[]
   UserData?: object
 }