[SECURITY] Insecure masks responsibility

[adrienaury]

It's the responsibility of the mask to know if it's secure or not. Each time a new mask is added we have to update this function. Maybe we could append a isSecure() function on mask interface. and filter on that attribute.

Originally posted by @youen in #65 (comment)

[adrienaury]

• Each mask should know if the secure mode is active or not.
• If secure mode is active, each unsecure mask should fail on error if used (for now : command)
• The interface for masks should have the isSecure method (force implementation for new masks)