dcs-hotload 1.0.0

Initial release.

• F10 menu built from user-scripts/: subfolders as submenus, _ names skipped, NN-
  ordering prefixes, paging past 10 entries per level (DCS does not page), Refresh menu and
  Stop all runs.
• Runs re-read from disk on every click, as coroutines with Hotload.wait,
  Hotload.waitFor, Hotload.load, Hotload.log and Hotload.say; different scripts run
  concurrently, the same script never twice at once; results shown on screen and logged.
• Mailbox: user-inbox/*.lua runs once each, its outcome written to
  user-outbox/<same name>.lua; opt-in by creating the folders. Hotload.run(label) runs a menu
  entry and waits for it.
• Startup checks the MissionScripting.lua edit, finds its own folder from the chunk name
  DCS reports, and announces itself with its version on screen and in the HOTLOAD: ready line.
• bin/hotload.sh: run, log and check from a shell.