RFE: saving session automatically saves a named view

[Elaine Meng]

Every time I am working on some kind of figure I really wish that when I restore a session, (sometimes) do some stuff, and then accidentally change the scene position with the mouse, that I could restore a named view that corresponds to when the session was saved. It is a pain to constantly re-save a view before re-saving a session after minor tweaks. Conversely, after I reopen the session and resume making minor tweaks, the whole thing is ruined if I accidentally change the view when I didn't want to do so. I can't just restore the session, that loses all of my tweaks.

I don't care that much what the view is named. I thought I requested this before for ChimeraX but (as usual) I could not find the prior request. In Chimera it was called "session-start"

[pett]

Okay, the command "view name session-start" is now issued after a session is restored. I made it show in the log to make it more obvious to users that this automatic view is available. I could hide the logging if people thought that was better.

Fix: ​https://github.com/RBVI/ChimeraX/commit/1a6b1dfefcb62eb4b6ecef98394bb1da32f59d73