feat(util/gconv): add basic types conversion support for function Scan

[gqcn]

No description provided.

[houseme]

https://github.com/gogf/gf/security/code-scanning 但是这些问题还是会存在

[wln32]

新增的带error返回值的api可以开放给用户使用，另http参数校验那些是不是也得改成带错误处理的api，不然参数解析错误，不返回错误，而是返回默认值似乎不太好

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The newly added api with error return value can be opened to users. In addition, the http parameter verification must also be changed to an api with error handling. Otherwise, the parameter parsing error will not return an error, but return the default value. It seems inappropriate. good

[gqcn]

新增的带error返回值的api可以开放给用户使用，另http参数校验那些是不是也得改成带错误处理的api，不然参数解析错误，不返回错误，而是返回默认值似乎不太好

我有此考虑，暂时不在这个pr上处理，我加了个issue记录: #4001

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The newly added api with error return value can be opened to users. In addition, the http parameter verification must also be changed to an api with error handling. Otherwise, the parameter parsing error will not return an error, but return the default value. It seems inappropriate. Very good

I have this consideration and will not deal with this pr for the time being. I have added an issue record: #4001