* Improve passing of ArrayBuffers to and from webviews
Fixes#115807
* Serialize and restore typed arrays too
This also makes it so that if you pass the same ArrayBuffer twice in an object, we use a single object on the receiver side too
* Fix spelling
* Require VS Code 1.56+
* Add an untitled document data property
* Dispose of the model passed back
* Fix layer problem
* Add untitledDocumentData to untitled notebooks
* Fix compilation errors
* Switch to using VS Buffer
* Fix threading the untitled document data back through
* Prevent save dialog on untitled reopen with
* Change ignore save setting
* Change setting name and abide by preserve focus
* Add unit test
* Switch to js doc comments
* Consolidate calculating the untitled value, and added test
- Move protocol types into protocol
- Hold off on combining the options objects until serialization
- Add explicit converstions instead of using `...`
- Make a few methods take property bags to help avoid passing arguments in wrong order
