add a test case to generate a bootstrap token for service to connect to light-config-server

[stevehu]

This token should have a custom claim service so that the config server can authorize the request by comparing the service from the JWT to the service in the request path. This will prevent one service mimic another service to get other's configuration files from the config server.

This token should be retrieved from the light-oauth2 or oauth-kafka token service from the pipeline and pass it to the container with CONFIG_SERVER_AUTHORIZATION env variable.

[stevehu]

add a test case to generate a bootstrap token for service to connect to light-config-server light-4j master