added caching to rich list and token distribution endpo… #1287
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Token Distribution and Rich List endpoints use heavy database scans. Without caching the heavy queries are running all the time and a lot of them in parallel because they also take some time to complete. This results in consuming the entire CPU constantly if in a network with many Outputs (like Testnet - or Stardust Mainnet that has the double amount).
Also fixes this issue:
#1225
Chronicles with this changes are running for a couple of weeks now on Testnet, Shimmer and now on Stardust Mainnet.