Feature Update (#237)

See PR for details, there are too many to be included here.

modules/commands/speed.lua

@@ -0,0 +1,15 @@
+--[[-- Commands Module - Set game speed
+    - Adds a command that allows changing game speed
+    @commands Set game speed
+]]
+
+local Commands = require 'expcore.commands' --- @dep expcore.commands
+require 'config.expcore.command_general_parse'
+
+Commands.new_command('game-speed', 'Set game speed')
+:add_param('amount', 'number-range', 0.2, 1)
+:set_flag('admin_only')
+:register(function(_, amount)
+    game.speed = math.round(amount, 3)
+    return Commands.success{'expcom-speed.result', string.format('%.3f', amount)}
+end)