* Handle BigNumber event params in watchers
* Customize decimal according to limits of IEEE-754 decimal128
* Add definition for custom scalar BigDecimal
* Handle tuple return type in ethereum host API
* Update graph-cli version to fix eth_call error
* Handle all types in struct based on abi
Co-authored-by: prathamesh0 <prathamesh.musale0@gmail.com>
* Invoke subgraph handler in watcher event processing
* Fix error when invoking subgraph handler
* Parse events using event signature specified in subgraph yaml
* Use contract abi to parse event params
* Invoke event handler based on event signature
* Fill event with block and transaction data
* Comment missing fields in block and transaction data