node color behavior in colorLogic

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in colorLogic mode, a signal with node color will interact with the node like node options are set.
but if a node recive a signal with an other color, 2 behaviors make sense to me :

• drop the signal
• transmit the signal as is to each arrow allowing it (no storage, no aggregation, no explosion...).

This two case could be a node option in colorLogic mode.

[1000i100]

done in #20 (except slider image)