Render terminal recordings only when changes are present

[MaximDevoir]

Feature

Rendering Terminalizer recordings on changed recordings and ignoring unchanged recordings will improve performance.

[MaximDevoir]

• Build cache and place in the output directory named cache.json (or whatever)
• Validate cache... logic... remove invalid elements/recordings from the cache.
• Render recordings that were invalidated or are not present in cache.
• On render success, add entry to the cache of the file recorded (along with checksum).