Add support for import export of Memories, User Rules, and Project rules

Hi
I wanted to ask you kindly for the support of exporting and importing memories, user rules, and project rules both through file with a certain format so that we can both add them as config when setting up our vscode but also to be able to move our memories and rules around easily.

This gap is deeply fely, especially as the memories and rules grows with project size and time. I can greatly help with managing env, just like vscode allows with having you setting exported or with what you currently do with MCP json file.