Issue #, if available:

Description of changes:

• make apply now uses the value of CLUSTER_NAMESPACE rather than a hardcoded namespace
• EventBridge rule name suffixes have been shorted to reduce likelihood of exceeding length limitation
• EKS cluster template now specifies Kuberentes v1.22
• ko is now installed from a pre-built binary rather than using go install to workaround a build issue in the ko project
• Dev guide now has instructions for verifying that an existing cluster has an IAM OIDC provider, and how to add one
• Dev guide now has steps to run make help and make test
• Dev guide now has an optional step to display all NTH v2 resources in the cluster
• Dev guide now has a list of tools used
• Dev guide steps and instructions have been revised and improved
• Terminator objects will now appear in the "all" category (e.g. kubectl get all -n <namespace>)
• Terminator template now specifies a namespace taken from CLUSTER_NAMESPACE

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.