Implement "Tagging" in the Generator

[tra38]

User Story (MVP) - Programmer would like the ability to filter what output can be generated, thereby having a finer control over the possible generated output.

Post-MVP - None.

Notes - This issue would fix scenarios where I might generate complications that conflict with each other ("CompNode loves the PC" and "CompNode hates the PC"). Contradictory complications does make sense (PARANOIA-wise), but it makes it harder for the GM to rationalize, so we need to eliminate them. As a fair warning, this issue may require a lot of "hacks" to circumvent Calyx's limitations.

Priority - Medium