Support launch.vs.json

[int19h]

Currently, there's no way for the users to configure debugpy beyond the UI in Tools -> Options -> Python and project properties. Most importantly, this UI doesn't cover #6610, but there are other miscellaneous debugpy features that are currently not accessible, and some diagnostic and debugging facilities that cannot be easily enabled.

This can be fixed by providing a way for the users to directly supply the raw JSON debug configuration, similar to launch.json in VSCode. Visual C++ has a similar feature in form of launch.vs.json, so we can adopt the same design for PTVS.

[int19h]

It should be noted that VC++ seems to only support this file for Open Folder projects. For PTVS, it would be desirable to support it uniformly, so we need to figure out where it should be placed for regular solutions / projects. Probably under .vs?

[BWWIT]

Please add a way to specify a mapping for local/remote path when doing remote debug using debugpy.
#6610 was created in 2021 and no progress since! :-(
I expect is take little effort/time to implement so debugpy can work in VS. That's the only thing missing, all the rest "hard stuff" is already working (connection, communication, debugging etc)!
It doesn't matter if it is set in registry, ini-file, json, xml or GUI, as long it get fixed.
There have been wasted more time on making issues about how to do: "...should we implement it in the GUI?, we need to ask PM", bla. bla. bla. At this stage, just implement it in the easiest possible way, you have wasted 5 year of with just talk.
PLEASE