Intent: Query leaf and yard waste schedule

Boston does leaf and yard waste pickup from April to December during specified weeks (Can be found here: https://www.boston.gov/departments/public-works/leaf-and-yard-waste-schedule). Might be useful to query this information from Alexa. Hopefully should be very similar to the existing recycling and trash pickup intent.

Start by locating the existing recycling and trash pickup intent in the Python project and compare its flow with the Boston leaf and yard waste schedule. Use the linked Boston Public Works page as the source; done means Alexa can query and report the applicable April-to-December pickup schedule.

Written by the indexing model from the issue text.