fix: now pick_file can run on windows

[jinzhongjia]

In the past, functions used Unix's check permissions to find executable files, which did not work on Windows.

Now change to use the suffix name and allow fallback to using powershell

new feat: when adapter.options.initialize_timeout_sec is false, dap will not notify use adapter is slow, this is very useful on large projects

[jinzhongjia]

Sorry, there is a problem, I need to make some changes

[jinzhongjia]

I made a little formatting in the code, so there may be a little more places to modify commit. If you think my formatting style is not good, you can pull it into the local format and then push it up.

[jinzhongjia]

And I add a little feat:
when adapter.options.initialize_timeout_sec is false, dap will not notify use adapter is slow, this is very useful on large projects
The company I work in is about 15 seconds to compile the go project. This slow prompt is sometimes a headache