Merged PR 175: Implement drag drop

- [x] Implement drag drop to create an element at a specific index
- Add Swap behavrior
- Implement max contraints with simplex
~~- [ ] Implement drag drop to swap two container that flex~~

- Fixes tries number for simplex it can now go up to 2 * number of containers
- Fixes flex calling another flex behavior when not needed (remember that flex behavior is the only behavior that needs to communicate with siblings)
- Fix max width being ignored in input group

src/Components/ContainerProperties/ContainerForm.tsx

@@ -119,6 +119,7 @@ export function ContainerForm(props: IContainerFormProps): JSX.Element {
         inputClassName=''
         type='number'
         min={props.properties.minWidth}
+        max={props.properties.maxWidth}
         value={(RemoveWidthMargin(props.properties.width, props.properties.margin.left, props.properties.margin.right)).toString()}
         onChange={(event) => props.onChange('width', ApplyWidthMargin(Number(event.target.value), props.properties.margin.left, props.properties.margin.right))}
         isDisabled={props.properties.isFlex} />