SupRsync adding finalize files every other day

[jlashner]

@kmharrington noticed that finalization files were being written by by suprsync every other day, instead of having a finalization file daily. Looking closely at the code, I realized that the reason is probably that the pysmurf-monitor is not using the srfm.add_file function to add files to the db:

socs/socs/agents/pysmurf_monitor/agent.py

Lines 210 to 211 in b9609ac

	with srfm.Session.begin() as session:
	session.add_all(files)

which is an issue since the add_file fn is what actually adds the tcdir for the new file. This means the only files that are being added via add_file are previous finalization files.... which I think is what's causing this leap-frogging bug.

I think the easiest way to fix this is to have the suprsync agent regularly check and add the timecode dirs for recent files. I am going to have the agent query the last ~weeks worth of files to add timecode dirs like once an hour or so, and see if that fixes this bug.