[1.0] Better logging for aggregate_vote failure and add logging for proposer policy becoming active

[linh2931]

• Log detailed information when verify_sig fails, including block ID, vote strong or weak.
• Add debug logging when proposer policy becoming active

debug 2024-08-15T12:53:57.365 unit_test block_header_state.cpp:349    finish_next          ] Proposer  policy version change: 0 -> 2
debug 2024-08-15T12:53:57.365 unit_test block_header_state.cpp:351    finish_next          ] New       proposer policy becoming active in block 37:                                                           0000002553a993a7e5895478dd02d8b67716476ca7df7cd78cf221752787f233: {"proposal_time":"2020-  01-01T00:00:11.500","proposer_schedule":{"version":2,"producers":[{"producer_name":"bob",  "authority":[0,         {"threshold":1,"keys":[{"key":                                                                         "EOS5mF6KuJY8NgNqzKS4oUjoq2q6n3txkprAhtjLb1gyi7nJ7QZLD","weight":1}]}]}]}}

[ericpassmore]

Note:start
group: LOGGING
category: INTERNALS
summary: Better logging for aggregate_vote failure, and better logging when proposer policy becomes active.
Note: end