Enhancement of State / Mode objects

[vik378]

In Capella itself you can do a lot more with states and modes at the moment, lets fix that. For State / Mode objects we should add the following attributes:

• .related_transitions - list of transitions that may lead to and from this state
• .incoming_transitions - list of transitions that lead to this state
• .outgoing_transitions - list of transitions that lead out of this state
• .owner - a structural element (Entity, Component, Class, etc) that the parent state machine belongs to
• .related_states - list of states that the owner may transition to or from this state
• .source_states - list of states from which the system could transition to this state
• .target_states - list of states to which the system could transition from this state
• .entry - list of activities or functions that are performed on entry into state
• .do_activity - list of activities or functions that may be performed while in state
• .exit - list of activities or functions that are performed before leaving the state

we should also rename .states to .states_and_modes and add a separate .states that isnt mixed with modes

Adding the above should also enable introduction of a meaningful context diagram for a state.