[3d] improve recording video

(From community feedback):
I have been testing the new load 3d animation node and it is dope, but it needs some things that are really important IMO. It needs focal length for the camera so we can set it to say 24mm for a wide shot. It also needs to have a Boolean to allow the user to either use the camera information within the FBX file or move the camera on their own while recording. Mouse tracking is nowhere near precise enough. I tracked down the files needed to modify it and they are in the precompiled code for the front end which is a huge mess to try and sort out for those of us who are adding to and augmenting the code. If you could put a word in that would be dope.

┆Issue is synchronized with this [Notion page](https://www.notion.so/Issue-4096-3d-improve-recording-video-20b6d73d3650814db9dfd0ab54b987c2) by [Unito](https://www.unito.io)