Blender Git Loki

Fix Cycles standalone compilation following API changes

The changes to the socket API were not applied to the standalone app.

Also modify Camera.compute_auto_viewplane() to use Camera.full_width and Camera.full_height as it is not possible to publicly access Camera.width and Camera.height anymore, so the aspect ratio could be computed with stale data.

Differential Revision: https://developer.blender.org/D9961