DTDA/TFTA/QCA should expand protein families and complexes

[bgyori]

Consider the following questions:

• Is there a drug that targets PI3K?
• What genes does AP-1 regulate?
• How does RAS activate MEK?

Currently Bioagents tasks would fail because they wouldn't be able to look up family-level entities in their respective resources. These are all cases in which the Bioagents could expand the families being referred to and query for specific proteins to produce an answer.