Support for putting cooldowns on a timeline via a replay

[xpdota]

This allows you to copy cooldown usages from an import (fflogs/act log/etc) onto your custom timeline.

UI will be cleaned up before this gets released.

Steps to use:

1. Import something (fflogs, ACT log, or triggevent session)
2. If using an ACT log or session file, advance the replay to the beginning of the pull that you want to import mits from. This isn't necessary with fflogs since you only import a single pull at a time.
3. Click the new "Record" button in the bottom-right corner of the Plugin Settings -> Timelines tab (see below)
4. Wait for it to run through the entire pull, then click "Accept"
   

By default, each entry will be imported as a job-locked timeline entry without a trigger enabled.

Recording will replace all previously recorded timeline entries for that zone, but should not remove any custom entries which were not imported/recorded.

Known issues:

• UI sucks
• Doesn't always correctly handle the second phase of doorboss fights, since it may take some time to sync

[github-actions]

Once this branch successfully builds, you will be able to try the branch out for yourself by changing the "branch" in your updater to "timeline-import" (without the quotes).
This setting can be found under the "Updates" tab.

Don't forget to change back when you are done testing. You should reset your branch either to 'stable' for normal releases, or 'master' for beta builds.