[Feature] Add proxy support for binarystore.xml (at least for s3-storage-v3 provider)

[jcoste-orange]

I need to configure a binarystore.xml using a s3-storage-v3 provider.
To access the internal "S3" endpoint I need to configure a proxy.

Looking at documentation, I can see proxyHost and proxyPort parameters.

But the chart doesn't allow to configure these parameters (see https://github.com/jfrog/charts/blob/master/stable/artifactory-ha/files/binarystore.xml for example).

Would be great to add to values :

artifactory:
  persistence:
    awsS3V3:
      proxyHost: myproxy.mycompagny.com
      proxyPort: 3128

Then the template for binarystore.xml would be able to use these values to configure the proxy.

[joshuaauger]

Looks like someone added it.