* Update `add_license` script
* run script
* add `remove duplicate lines script` and run it
* Revert changes `English spaces`
* strip whitespaces
* Revert `GPL` in files with `apache/mit license`
* don't append `gpl license` in files with other lic
* Don't append `gpl header` in files with other lic.
* re-ran script
* include c and cpp files too
* remove duplicate header
* rebase nit
* Node-health to a separate crate.
* Initialize node_health outside of dapps.
* Expose health over RPC.
* Bring back 412 and fix JS.
* Add health to workspace and tests.
* Fix compilation without default features.
* Fix borked merge.
* Revert to generics to avoid virtual calls.
* Fix node-health tests.
* Add missing trailing comma.