feat: helmfile template --output-dir-template
for customizing output dirs
#1357
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This is useful for e.g. removing state file names and their hash values out of output dirs so that it can be used easily in a gitops setup. For example,
--output-dir-template mybasedir/{{.Release.Name}}
producesmybasedir/RELEASE/CHART/templates/*.yaml
for each release in your helmfile.yaml.