Create option to pass namespace as an option to helm

helm has a flag -n, --namespace where the chart will be installed in the specified namespace. By specifying this as a CLI instead of inside the chart, you can create entire environments without a chart change. Use example

A DEV server where we want to create an environment for branch testing. We run the helm chart with the name of the branch and it can spin up a front end, back end, redis, DB, etc... Basically everything in a single namespace.

When no longer needed, delete the namespace.

Start by tracing how BitOps parses command-line options and invokes Helm. Use Helm's -n/--namespace behavior as the reference, then verify that a supplied namespace is used for the complete environment and that the documented cleanup workflow remains clear.

Written by the indexing model from the issue text.