Codex/program address filters

[dancamarg0]

Alternative where we can block all heavy calls that include cursors, e.g:

  - [getTransactionsForAddress, So11111111111111111111111111111111111111112, {paginationToken: any}]
  - [getTransactionsForAddress, MemoSq4gqABAXKb96qnH8TysNcWxMyWCqXgDLGmfcHr, {paginationToken: any}]
  - [getTransactionsForAddress, HLnpSz9h2S4hiLQ43rnSD9XkcUThA7B8hQMKmDaiTLcC, {paginationToken: any}]
  - [getTransactionsForAddress, ComputeBudget111111111111111111111111111111, {paginationToken: any}]
  - [getSignaturesForAddress, ComputeBudget111111111111111111111111111111, {before: any, until: any}]

Such addresses without any cursor parameter or cursor set to null will still work, but any calls with cursor will be blocked and return "Method not allowed"