c9f13b5404
This patch introduces support for `clipboard` context from [DAP](https://microsoft.github.io/debug-adapter-protocol/specification#Types_Capabilities). This feature is very useful when you want to copy all nested values from a structure or a container instead of a summary (e.g. `size = 3` for vector). I added new short mode for description generation to reduce output verbosity, which is particularly useful for primitive types.