Support for copying complete stacks to the pasteboard.

[mozhuanzuojing]

[provide a description of the issue]

feature request

When debug code, we want to see the full stack and then filter it to get the information we really need. So need to be able to get all the text information of the current stack. would like to provide this feature.

[testforstephen]

This could be a helpful feature. It might be a good starting point for community contributior. @mozhuanzuojing Do you have interest for contribution?

Here is a reference PR on how to add new menu to the call stack view. #748

[mozhuanzuojing]

@testforstephen yes. i will develop this. Thanks for your reply and guidance !