Lua API improvements + direct UEVR integration

[praydog]

Important additions

• Added LuaLoader to UEVR menu, scripts can be loaded from <config folder>/scripts/*.lua

Lua API improvements

Properties can now be accessed and set

• Boolean, integer, floating point properties
• FName, UObject properties
• Array properties (getter only, of UObject* elements)

TODO: StructProperty (vectors etc), ClassProperty, ByteProperty, EnumProperty

Functions can now be called on objects

ex:

local game_engine_class = uevr.api:find_uobject("Class /Script/Engine.GameEngine")
local game_engine = UEVR_UObjectHook.get_first_object_by_class(game_engine_class)
local game_instance = game_engine.GameInstance
local local_players = game_instance.LocalPlayers
local player = local_players[1]
local player_controller = player.PlayerController
local pawn = player_controller.Pawn

local lifespan = pawn:GetLifeSpan() -- function calling with return values
pawn:SetLifeSpan(lifespan + 1.0) -- function calling with arguments

• Boolean, integer, floating point parameters
• FName, UObject parameters

TODO: StructProperty (vectors etc), Array parameters, out parameters, ByteProperty, EnumProperty

[mrbelowski]

should these early returns log something to help the script developer? If the property / class isn't found (typo, wrong path, whatever) then the failing set_property call might go unnoticed

[praydog]

yeah, I can add a throw

[mrbelowski]

Looks good