Limit VSCMatured packets handled in endblocker

[shaspitz]

Problem

This issue encapsulates what we've defined as "audit issue number 3" internally lol. We need to limit the rate that VSCMatured packets are handled in endblocker.

Closing criteria

Hardcode some number, ex 100 of vsc matured packets st. once you handle that many packets in a single endblocker, handling execution is stopped, and remaining queued packets will be handled on subsequent blocks.

Make sure to include a comment that future improvements to throttling will make the short term solution obsolete!

Problem details

Note this issue will be solved and a part of ICS v2. However, solving #713 will also handle the issue in a future release.