* internal/cli: add support to overwrite config.toml via cli flags
* fix lint and refactor
* add extensive tests for flagset
* fix type conversion for big.Int
* add more tests for coverage
* add t.parallel
* internal/cli/flagset: handle flag conversion using interface
* internal/cli/flagset: fix test
* added go and bash script to get config out of start.sh and updated flagset.go
* changed 'requiredblocks' flag back to 'eth.requiredblocks'
* updated script
* changed 'requiredblocks' flag back to 'eth.requiredblocks'
* updated tests, and removed requiredblocks from json and hcl
* addressed comments
* updated simple.json and simple.hcl
* added annotations for developer and grpc block
* added toml tags and simple.toml file
* added support for toml config files
* updated simple files toml, hcl, json
* added config.toml in builder/files and updated bor.service
* add dumpconfig command in cli for exporting configs
* update docs
* updated .goreleaser.yml (POS-651)
* changed --config to -config
* added test config for tests and fixed lint errors
* made fields of type big.int and time.Duration private, removed merge from dumpconfig, setting up default values to the Raw fields in dumpconfig, and fixed one lint error
* fixed lint errors (strange)
* lint fix
* private no-more, using '-' in name tags to ignore
* updated name tags, made c.configFile as a stringFlag (only one config file supported) and updated the merge logic in command.go -> Run()
* fix: set method for big.Int flags, added a TODO
* handeled bigInt and timeDuration type, bug fix in config_legacy, lint fix
* updated flags, consistent across flags.go and config.go
* fixed config test and updated test hcl, json config files
* updated config legacy test
* added test to check values of cmd flags, restructured Run in command.go, linter fix
* fix linters
* lint again
* changed 2 flags and assert -> require
* changed the 2 flags back
* updated correct congig.toml path and made mainnet default
* updated config.toml with new flags
* added sample config (toml) file
* removed sample-config.toml and added it in docs/config.md
Co-authored-by: Manav Darji <manavdarji.india@gmail.com>
