Paths should be relative to that of helmfile.yaml

[mumoshu]

In the example below:

releases:
- name: myapp
  chart: ./myapp/charts/myapp
  values:
  - ./myapp/values.yaml
  secrets:
  - ./myapp/secrets.yaml

I would expect helmfile -f path/to/helmfile.yaml to resolve all the paths included in the file to be under the directory path/to. As of today helmfile resolves it relative to CWD.

[mumoshu]

Beware that we can't just automatically cd into the directory the targeted helmfile.yaml is in, not to resurrect #173

[mumoshu]

This seems to affect lint, but sync. Unsure about other commands yet.