the accessibility quickbar

[ahicks92]

If we add alt to the normal quickbar hotkeys, we have a free keyspace. This keyspace is generally not used for other things, and if it is we can overload it ourselves. Let's do that and call it the accessibility quickbar. It can hold things like:

• All fast travel points
• References to the player's UIs to allow opening directly
• Orders to craft x of y
• Possibly preconfigured upgrade planners (that's a whole thing--we may not be able to use normal ones).
• References to specific entities, even if those entities move.
• Actions for other mods, which would be too expensive/uncertain/many to add to keys by default.
• Read status of closest x without moving the cursor (electric poles say)
• Read status of the n closest xs.
• Focus closest x (e.g. electric poles, or assembling machines)
• Configure thing under the cursor to craft recipe r.
• And so on.

We could go on all day with actions someone might wish to perform frequently. We haven't even gotten to e.g. running syntrax programs. We'd want to draw the line somewhere, yes, but if you can list more things than you have keys for a quickbar, it's probably a good idea.