Refactor some of the Guis from the legacy plugin (#399)

* Fix bugs in core and add default args to Gui defs

* Refactor production Gui

* Refactor landfill blueprint button

* Fix more bugs in core

* Consistent naming of new guis

* Refactor module inserter gui

* Refactor surveillance gui

* Add shorthand for data from arguments

* Make element names consistent

* Add types

* Change how table rows work

* Refactor player stats gui

* Refactor quick actions gui

* Refactor research milestones gui

* Refactor player bonus gui

* Refactor science production gui

* Refactor autofill gui

* Cleanup use of aligned flow

* Rename "Gui.element" to "Gui.define"

* Rename Gui types

* Rename property_from_arg

* Add guide for making guis

* Add full reference document

* Add condensed reference

* Apply style guide to refactored guis

* Bug fixes

exp_legacy/module/expcore/roles.lua

@@ -604,7 +604,6 @@ local has_flag = Roles.player_has_flag(game.player, 'is_donator')
 ]]
 function Roles.player_allowed(player, action)
     local roles = Roles.get_player_roles(player)
-    if not roles then return end
     for _, role in ipairs(roles) do
         if role:is_allowed(action) then
             return true