* Refactor fill CLI to cli package
* Refactor method to fill-state to graph-node
* Refactor fill-state CLI to cli package
* Move subgraph state utils to a separate file
* Refactor subgraph state helper methods to graph-node
* Update mock indexer
* Move watcher job-runner to util
* Remove mock server and data from erc20-watcher
* Import watcher job-runner from util
* Refactor reset CLIs to cli package
* Use reset CLIs from cli package in watchers
* Fix method to canonicalize latest entities
* Use composition with common code for refactored CLIs
* Refactor watch-contract CLI to cli package
* Use watch-contract from cli in eden and erc721 watchers
* Use watch-contract from cli in all watchers
* Pass an object containing clients to refactored CLI
Co-authored-by: nabarun <nabarun@deepstacksoft.com>