Split "disk video" into an offline rendering utility

[LegalizeAdulthood]

"Disk Video" was implemented to render arbitrarily large images from a parameter set in a non-interactive manner. Replace "disk video" with a console-based offline rendering utility that does the same thing.

This probably isn't feasible until the UI and rendering code is more cleanly separated.

Features:

• By default, it doesn't print anything, but command-line switches enable increasing verbosity for very long renderings.
• Ctrl+C (SIGINT on unix) interrupts the rendering, but saves the state in the image file for later resuming.
• Partially completed image file can be resumed.

[LegalizeAdulthood]

Could be a curses program with input and output, just no video display?

[LegalizeAdulthood]

Console Iterated Dynamics .... cid ... el-cid.exe