* Implement ext_ hashes for contracts (issue #5258)
* load cryto hash .wat from raw string literal instead of file
* update .wat contents for testing crypto hashes
* remove unnecessary 'static
* fix bug in input (call_indirect required 1+ at least it seems)
* no longer use scratch buffer for crypto hash functions
* improve doc comments of ext_ hash functions
* remove unnecessary comment in .wat test file
* add return value (const 0) to contract test to hopefully enable result buffer
* fix bug in contract assertion
* implement proper output_len in contract
* implement proper test for crypto hashes
* bump spec_version 238 -> 239
* fix COMPLEXITY description
* remove final invalid instances of scratch buffer from docs
* split out ext_clear_storage from ext_set_storage contracts API
* update tests to adjust for the ext_set_storage changes
* adjust COMPLEXITY for the ext_set_storage API changes
* remove value_len == 0 constraint for ext_set_storage
* bump spec_version
* remove guarantee from COMPLEXITY of ext_clear_storage
Co-authored-by: Gavin Wood <gavin@parity.io>
* contracts: during execution -> contract trapped during execution
This message confused many people so we are improving it to make clear what happened.
* contracts: rename Event::Contract -> Event::ContractExecution
* contracts: fix tests after ContractExecution renaming
* contracts: Add Evicted and Restored events
* fix doc comment
* wrap to not go over (soft) 100 column line limit
* add event deposit for eventual eviction upon pay_rent
* contracts: adjust tests for the new events
* emit Evicted event immediately and add tombstone flag bool
Hero Bird