Remove Hashicorp and Vault References

[naphelps]

Change references as needed from Hashicorp Vault to OpenBao. Remove as needed Enterprise references.

[jessebot]

Should we also do the copyright notices? See #4

[jessebot]

Thanks for your reply in the discussion :)

Updates for this issue specifically, so others are in the know:

After #7 was merged, @naphelps took care of a lot of it (thank you 🙏 ). We still have a number of references to vault specifically in the _helpers.tpl template though. This is important, because typically in helm charts, named templated should reference the application you're deploying, as you can also reference downstream sub-chart templates, so if someone includes our openbao helm chart in their larger stack helm chart, it's important that they can consistantly reference for instance, the openbao.fullname template, which is useful for referencing various resources. Example:

openbao-helm/charts/openbao/templates/_helpers.tpl

Lines 12 to 23 in b59b6e5

	{{- define "vault.fullname" -}}
	{{- if .Values.fullnameOverride -}}
	{{- .Values.fullnameOverride | trunc 63 | trimSuffix "-" -}}
	{{- else -}}
	{{- $name := default .Chart.Name .Values.nameOverride -}}
	{{- if contains $name .Release.Name -}}
	{{- .Release.Name | trunc 63 | trimSuffix "-" -}}
	{{- else -}}
	{{- printf "%s-%s" .Release.Name $name | trunc 63 | trimSuffix "-" -}}
	{{- end -}}
	{{- end -}}
	{{- end -}}

Since these are all named templates, we'll also need to update locations that reference them, such as:

openbao-helm/charts/openbao/templates/tests/server-test.yaml

Line 12 in b59b6e5

name: {{ template "vault.fullname" . }}-server-test

I will take care of some of this while tending to #9, but we'll assess again after that. Other than that, we just need to finish up #3 and we should be golden on this issue :)

[jessebot]

I got the bulk of this in #11, but I missed a couple of important bits that I'll address in just a bit.