feat: allow multi anmespace deployments with namespaceOverride (#25)

[dada-engineer]

This adds the possibility to allow the release namespace to be overridden for multi-namespace deployments in combined charts.

Fixes #25

[Clint-Chester]

Was looking for this before I deploy the operator 😄 thank you for this!

[akyriako]

Hi @dada-engineer, thanks for the contribution but I have some concerns about the changes (and the same counts for the PR #102).

The changes have been implemented directly into the charts/typesense-operator/templates/*. The thing is, that the operator-sdk (and the kubebuilder as well that operator-sdk is built upon) have a specific process for building all the kubernetes related artifacts, via kustomize check under config/*. The helm chart themselves are (re)created in this project, not an operator-sdk specific workflow step, automatically via helmify (check Makefile) which means that every time we publish a new version all these helm chart template files will be renewed and eventually your changes are gonna be overwritten!

In that way the compatibility with operator-sdk generic build workflow seems to break and extra manual steps seem to be introduced for future releases workflow (which now are limited only to change the version of the helm chart as the rest are taken over by helmify)

[dada-engineer]

Thanks for noting this will check later 👍🏻