* Add validator-api common client
* Call validator-api from different clients for gateway topology
* Call validator-api from different clients for mixnode topology
* Use consts for the validator-api queries
* Rename the new query_validator function to query_validator_api
* Add mut to mixnode validator client
* Add refreshValidatorAPIGateways as a way to get the gateways...
... from validator-api
* Add refreshValidatorAPIGateways as a way to get the mixnodes...
... from validator-api
* Add yet another mut
* Change the port to validator-api service when querying the topology
* Add parsing check on the config phase...
... to make sure the validator URLs are in the correct format.
* Fix another clippy error
* Use all provided validators instead of just the first one
* The mutable reference was not actually needed, so remove it
* Use global variable for validator-api port
* Use url crate for checking the format and changing the port
* Use URL for parsing and move constants of validator-api to index.ts...
... until we find a way to link to the values from the validator-api
crate.
* Change global variables naming and have the API version into each API query
* Revert the changes to the index on connect...
... as they were working correctly before.
* Use all provided validators for mixnodes as well
* Remove location and layer