A134-Support special trigger_type

[arthur91f]

Implement special functions:

• is_true()
• is_false()
• is_equal(str)
• is_different(str)
• contains(str)
• not_contains(str)
• match(str)
• not_match(str)

[arthur91f]

take care to not setted events

• change linked_next by something more specific
• smart-lay is a behaviour that can trigger other action : so change all hard written "lay" in the function
• as we can tigger other action, brickToExecute shouldn't be of type Bricks but a tuple of action *Brick
• should priorize action
• change execution sum-up to specify action executed

[arthur91f]

• exeiac should manage the event file to empty it or remove it
• exeiac should not fail when the event file doesn't exist, just consider there is no event and set it's event to null.
• exeiac should save the old event in an other file with a timestamp if we specify an option --debug-event=/tmp/exeiac (perhaps create an other ticket for that)