Quarter values for ETA

Description: Create the ability to enter a quarter value (Q1, Q2, etc.) in the ETA for an item, rather than just at the month level. Problem: We don't like being too specific with public dates, especially when projecting relatively far out. Benefit: Quarters are still generally specific enough to meet client and prospect needs and set the right expectation, but also broad enough that we don't have to constantly keep them updated or worry about being too accurate.