Window Resize Fix (Iris & Distant Horizons)

First release. Two depth-buffer fixes for Iris.

Distant Horizons stops drawing after any window resize, with no render-scaling mod involved, and stays broken until the world is reloaded: Iris's resize walk hangs Minecraft's depth texture on the Distant Horizons framebuffers, and the reconnect that would restore DH's own is guarded by a texture id that never changed. Fixed by clearing that remembered id so Iris re-attaches normally.

The world's depth does not follow a replaced main render target, so a render-scaling mod leaves colour buffers of one size against a depth buffer of another. Iris decides when to re-read the depth from a version counter that lives on the target object and cannot notice the object being replaced. Fixed by comparing texture ids and sizes instead of the counter.