EGL_EXT_create_context_robustness: query reset notification strategy through eglQueryContext

[bl4ckb0ne]

Closes #184

Mesa implementation 1 and usage in Monado 2

[oddhack]

This changes the behavior of a shipping extension. What will an app do that expects this behavior when running against an implementation that has not been updated accordingly?

@dgkoch you might care to comment since this was your extension originally, albeit in a previous life?

[dgkoch]

👎 Yeah I don't think adding functionality to an extension that has been shipping for 12 years is a good idea.

[bl4ckb0ne]

I see your point, I'll close it.