* Implement data source templates
* Remove optional param from wasm instantiate
* Add all types for solidity to typescript mapping
* Set contract address in context for data source templates
* Implement block handlers for data source templates
* Parse events for multiple contracts in the generated code
* Use contract wise artifacts in the generated indexer methods
* Update codegen docs to use config file to generate a watcher
* Add watcher generation config to eden-watcher
* Add subgraph schema types to the generated schema
* Add queries for subgraph entities
* Add entity generation for subgraph entities
* Call subgraph event handler in indexer
* Refactor subgraph schema and entity generation
* Add resolvers generation for subgraph entities
* Get event signature in the event
* Add NonNullType check for field type in entity generation
* Auto-diff based on store set
* Use contract address from data source in loader
* Change subgraph-schema arg to subgraph-path arg
* Implement storage mode in code generator.
* Fix indexer template for eth_call.
* Add support for both eth_call and storage modes.
* Add eventsInRange, events file gen and default entites gen.
* Use static property to column maps in database.
* Process events query.
* Avoid adding duplicate events in indexer.
* Fix generated watcher query with bigint arguments.
Co-authored-by: nabarun <nabarun@deepstacksoft.com>
Co-authored-by: prathamesh <prathamesh.musale0@gmail.com>