[feature] Allow specification of target sync store in manifest file

[mcarter-cyber]

Is this Feature/Enhancement related to an Existing Problem? If so, please describe:

• The target store for each manifest file is specified on the command line at time of sync, so when passing multiple files to the hauler store sync command, all files will have the same content store.

Describe Proposed Solution(s):

• Add a metadata attribute containing target content store, i.e.:

apiVersion: content.hauler.cattle.io/v1alpha1
kind: Files
metadata:
  name: hauler-files
  store: extras
spec:
  files:
    - path: https://github.com/hauler-dev/hauler/releases/download/v1.1.1/hauler_1.1.1_linux_amd64.tar.gz
      name: hauler-linux-amd64.tar.gz

Describe Possible Alternatives:

• Store could be set via an annotation instead, i.e.:

apiVersion: content.hauler.cattle.io/v1alpha1
kind: Files
metadata:
  name: hauler-files
  annotations:
    hauler.dev/store: <store>
spec:
  files:
    - path: https://github.com/hauler-dev/hauler/releases/download/v1.1.1/hauler_1.1.1_linux_amd64.tar.gz
      name: hauler-linux-amd64.tar.gz

Additional Context:

• N/A