feat: Make MonitorUpdatingPersister change persist type based on size

[Prabhat1308]

fixes #3770

• Skips full persistence when ChannelMonitor is smaller than a pre-determined size.
• Adds a field minimum_monitor_size_for_updates to specify the minimum size for full persistence to be activated
• Adds new_with_default_threshold function to setup MonitorUpdatingPersister with a default minimum_monitor_size_for_updates value

[ldk-reviews-bot]

I've assigned @joostjager as a reviewer!
I'll wait for their review and will help manage the review process.
Once they submit their review, I'll check if a second reviewer would be helpful.