Redo examples

[sr229]

Right now we have updated to 0.9.1 but our examples hasn't been updated. This will resolve #47.

[GeorgeS2019]

Looking forwards for more example using WebCam to mediaPipe.NET

[zhou123aw]

How to use the examples?

[GeorgeS2019]

Use GDMP

[Mayar-ab]

HI,
I would like to use an example code for FaceMesh. Nothing is available on the current code, so I'm going back to 0.8.9. Is there any other option? Really would love to see examples for the latest code, as without them, it is really difficult to benefit from this project