[add] Support Chains in Node Status on Shared Daemons

When running a node with daemons external to the namespace (as documented in https://gitlab.com/thorchain/devops/node-launcher/-/blob/master/docs/Multi-Validator-Cluster.md), the chain daemon sync statuses were not reported in the make status output. Since only bifrost currently has these hosts configured, this change updates the status script to read the environment variables set in node-launcher so the status can be run from within the bifrost container instead and reference the external daemons.

There will be a corresponding PR in node-launcher to run the status command on bifrost instead of thornode when the node is a validator.