Enhancement ---@fieldread, ---@fieldwrite or attribute modifiers on typing

还没有人认领这个 Issue。

When using some c api's (In my case Factorio's modding api) when you retrieve a value you get one type, but you can set it with multiple different types.

```lua
---@class Surface
---@class Player
local Player = {}
---@fieldread surface Surface
---@fieldwrite surface Surface|string

local p = Player.surface --- p is Surface
p.surface = "Other Surface" --No warnings
```

Another thought I had was attribute types, which would more easily support more attributes in the future
```lua
---@field{read} surface Surface
---@field{write} surface Surface|string
---@field{read,write} surface -- the default if no attributes are supplied
```

该 issue 没有指定文件、测试或入口点。首先定位 language server 对 Lua 字段注解和类型检查的处理，然后将提议的 @fieldread/@fieldwrite 语法和属性语法与现有的注解行为进行比较。完成的标准是确定一种支持独立读类型和写类型的语法，并产生预期的警告行为。

由索引模型根据 Issue 内容生成。