[ACR Tasks] Feature: Allow specifying values

[ehotinger]

This includes two points:

1. In order to run a task file, you need to be able to specify a Values file
2. As well as --set variables

This provides rendering capabilities for things like build -t {{.Values.someTag}} where you could have a Values.yaml file containing someTag: foo, or alternatively you could specify --set someTag=foo

[StephenWeatherford]

@rosanch What do you think?

[rosanch]

I think it can be done. We upload the whole directory anyway. I'm just not sure how does the set functionality works. So I'm having trouble thinking how will it work with the schedule run API. But I'd take a deeper look into it after I finished with #682

[StephenWeatherford]

@rosanch Assigning P2 to 7.0 as investigate. I'd say whether you think this makes sense and its priority are up to you guys.

[StephenWeatherford]

We don't know the feature or requirements as well, so we'll want at least a recommendation from you on features. Thanks!

[bwateratmsft]

Closing as we've removed support for ACR tasks.