SplitArgs() extension method does not properly handle arguments with quoted values

I attempted to use SplitArgs() to split an string provided by a user while the console app is running (via Console.ReadLine()) and the result of it is different than if the user entered the string on the command prompt as part of launching.

Here is a concrete example:

`myprogram.exe cool-command --arg1="Howdy Partner" --arg2=arg_without_spaces`

Entering this from the command prompt will give you the following args in the args[] array.
* `cool-command`
* `--arg1=Howdy Partner`
* `--arg2=arg_without_spaces`

while SplitArgs() will give me the following

* `cool-command`
* `--arg1="Howdy Partner`
* `--arg2=arg_without_spaces`

Notice there is a quote before Howdy Partner and there is no trailing quote. I would expect no quotes at all.

I looked into alternate implementation and found this which worked correctly for me: https://stackoverflow.com/a/64236441/1571903

找到 SplitArgs() 擴充方法，並使用命令列範例重現問題，將其輸出與預期的 args 陣列進行比較。當加上引號的值回傳時不包含外層引號，且整個值維持為一個引數（包括剖析來自 Console.ReadLine() 的輸入時），即可完成。

由索引模型根據 Issue 內容生成。