Implement basic gesture detection to delete commands

[Garanas]

Description of the proposed changes

Adds a basic gesture detection to allow you to delete commands while in command mode. This is in particular useful when you do not use hotkeys. Often I find myself in the situation that I miss placed a build order. When you do not use hotkeys, this looks like:

• (0) Miss click a build order.
• (1) Right click to cancel command mode.
• (2) Right click to remove the build order.
• (3) Move mouse to the correct build icon and left-click it.

In particular, step 3 can be time consuming. With this feature it can be simplified to:

• (0) Miss click a build order.
• (1) Rage-move the mouse across the build order until it disappears.

And problem solved. See it also in action:

gesture-detection.mp4

Testing done on the proposed changes

All is tested during development. All the code is annotated. Debugging is in particular trivial since it requires no reloading of the game - see also the nice trick with using OnDirty and OnReload of the module 😃 !

Additional context

Requires FAForever/FA-Binary-Patches#90, which is available on the FAF Develop game type. To test this pull request you'll need to start a lobby using the FAF Develop game type to retrieve the correct executable.

With thanks to @4z0t for his time and effort.

Checklist

• Changes are annotated, including comments where useful
• Changes are documented in the changelog for the next game version