Remove functionalComponents property from Interaction

[manulera]

Related to SynBioDex/SBOL-utilities#248

[tcmitchell]

@jakebeal this will break the intentional bug-for-bug compatibility with pySBOL/libSBOL. libSBOL has a functionalComponents property on Interaction: https://github.com/SynBioDex/libSBOL/blob/master/source/interaction.h#L49

You can remove this property, and you should be aware of the ramifications before doing so.

[jakebeal]

Thanks, @tcmitchell - that's good to know.

Do you think there's a way to support the libSBOL bug while avoiding future confusion by marking it as deprecated or something of the sort?