UI Alarm for Tech Research Completion

[michael]

ESSENTIAL:

Game needs an alarm for the player to hear when a technology is completed being researched.

There is a nice ogg file here that will work:

audio\interface\alarm\alarmupgradearmory_1.ogg

LIKE TO HAVE:

Set the above sound effect as the "default", but then also allow to override it and use a custom sound in the technology json files. Probably something like:

"soundComplete": "interface\alarm\phase_town.ogg",

That way, "normal" techs will use the default sound while we can use some kind of special sound effects for special techs, like Phases.