Exploratory analysis of mempool telementry experiment

[bwbush]

• Probability that a transaction is in one node's mempool, given that it is in another node's mempool.
• Probability that a transaction is in the node's mempool, given that it is later received in a block.
• Probability that a transaction is in a block received by a node, given that is was previously received in the node's memory pool.
• Distribution of a transaction's arrival time prior to the slot where the block was produced.
• Fraction of mempool transactions received in the node's mempool before in their block.
• Temporal autocorrelation of fraction of mempool transactions received in the node's mempool before in their block.
• Temporal and spatial autocorrelation of fraction of mempool transactions received in the node's mempool before in their block.
• Identification and filtration of node clusters of mempool correlation.
• Tracking of CF's "canary" transactions' arrival in memory pools.
• Tracking of natural and induced congestion on arrival in memory pools.

[bwbush]

Completed in #629 .