Support for Obsidian's .excalidraw.md

[V4G4X]

[Feature Request] The way Excalidraw support embedding the diagram logic in .png and .svg files.
It would be convenient to have .excalidraw.md as well, because this is the file that Obsidian's Excalidraw Plugin uses.

It would be nice to have diagrams interchangeable between the two apps.

Sample excalidraw.md (Empty Diagram):

--- excalidraw-plugin: parsed tags: [excalidraw] --- ==⚠ Switch to EXCALIDRAW VIEW in the MORE OPTIONS menu of this document. ⚠== %%

Drawing

```json {"type":"excalidraw","version":2,"source":"https://github.com/zsviczian/obsidian-excalidraw-plugin/releases/tag/1.9.12","elements":[],"appState":{"gridSize":null,"viewBackgroundColor":"#ffffff"}} ``` %%

[pomdtr]

Hi! The excalidraw.md format is not officially supported by excalidraw, so it is out of scope for this extension:

This extension only goal is to integrate Excalidraw to the Visual Studio Code ecosystem. Users should be able to use both the website and the extension with a minimal amount of friction. As such, we will not accept any contribution that significantly modify the user experience compared to the Excalidraw website.