Select multiple components at once

[Mari0nV]

Description

As a user,

I want to be able to select multiple components at one in the Model view

so that I can perform actions on it

Acceptance Criteria

Scenario	Select multiple components by creating a zone
Given	A component on the Model view
When	I hold shift and left click and drag the mouse (creating a squared zone)
Then	All components contained in the squared zone are selected

Scenario	Select multiple components by click on shift
Given	A component on the Model view
When	I hold shift and left click on multiple components
Then	All the components clicked are selected

Scenario	Deselect components
Given	Multiple components selected on the Model view
When	I left click on the screen
Then	All the components clicked are deselected

Constraints

Multiple components can be selected simultaneously:
- By creating a zone by holding shift and left click and drag.
- By clicking on shift and left click on multiple components.
They will all be deselected when left clicking somewhere else on the Model editor.