Don't automatically run BundleStage::handle_tip_programs until the first bundle is received

[buffalu]

Problem

master and v3.1 have a change in behavior where the tip programs are automatically cranked instead of waiting for the first bundle that touches the tip account.

The benefit of this: helps mitigate not having tip cranking in banking stage code.

The downside of this: if BAM and the block engine have different block builder accounts, you end up with thrashing, even if the block engine isn't connected.

Proposed Solution

I think it'd be best to revert back to the previous behavior where you need to wait for the first bundle to process a tip account

[alvarengao]

Submitting fix in PR #1332. Implements lazy evaluation for tip programs to prevent state thrashing when bundle storage is empty.