- added `FuzzDictionaryConfig.max_calldata_fuzz_dictionary_addresses` option to specify how many random addresses to generate and to randomly select from when fuzzing calldata. If option is not specified then current behavior applies
- to narrow down number of runs / addresses involved in invariant test the `CalldataFuzzDictionaryConfig` is populated with random addresses plus all accounts from db (from `EvmFuzzState`)
- added `fuzz_calldata_with_config` fn that accepts `Option<CalldataFuzzDictionary>` as param. Non invariants tests use existing `fuzz_calldata` fn and pass None as config arg

…nner, code cleanup