High memory consumption

[Veslo5]

I did some testing and found that my code take huge amount of memory. I've used lua-star module by wesleywerner for astar pathfinding which uses a lot of tables. I've tested it on both windows x64 and also on mac arm64 just to be sure.

Because of already reported bug #77 I had to change clamp function in lua-astar to this:

-- (Internal) Clamp a value to a range.
local function clamp(x, min, max)
    -- return x < min and min or (x > max and max or x)
    if x < min then return min elseif x > max then return max else return x end
end

Then I used DoFileAsync in Lua-CSharp like this:

state.OpenStandardLibraries();
var result = await state.DoFileAsync("test.lua");

test.lua

local pathFinding = require("astar.lua")

function positionIsOpenFunc(x, y)
   return true 
end

local path = pathFinding:find(10, 10, {x = 1, y = 1}, {x = 8, y = 8}, positionIsOpenFunc, false, false)

if path then
    return path
else
    return nil
end

Maybe Lua-CSharp is not intended to be used like this, but somebody could use this scenario for optimization or some benchmarks.