This removes split ownership for workspaces. They are now
a resource of organizations and have a designated owner,
which is a user.
This enables simple administration for commands like:
- `coder stop ben/dev`
- `coder build logs colin/arch`
or if we decide to allow administrators to access workspaces,
they could even SSH using this syntax: `coder ssh colin/dev`.
This PR modfies the original 3-valued cron strings used in package schedule to be traditional 5-valued cron strings.
- schedule.Weekly will validate that the month and dom fields are equal to *
- cli autostart/autostop will attempt to detect local timezone using TZ env var, defaulting to UTC
- cli autostart/autostop no longer accepts a raw schedule -- instead use the --minute, --hour, --dow, and --tz arguments.
- Default schedules are provided that should suffice for most users.
Fixes#993
