Create a built-in role for mongot that contains correct roles to facilitate communication with mongod.

When authorization is enabled on mongod, the connection strings supplied to mongot must contain credentials associated with a user associated with roles that have the privileges required by mongot:
https://github.com/10gen/mms/blob/5ce60b33a0c866d57811d1c9b14b79beae8bee41/server/src/main/com/xgen/svc/nds/planner/GenerateAutomationConfigBaseStep.java#L523

role to be added in src/mongo/db/auth/builtin_roles.yml