deprecation notices for dl and the non-store version of serve

[amartin120]

• Please check if the PR fulfills these requirements

• The commit message follows our guidelines
• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)

• What kind of change does this PR introduce? (Bug fix, feature, docs update, ...)

Adds notification messages for hauler download and hauler serve (not the store version).

• What is the current behavior? (You can also link to an open issue here)

No deprecation messages.

• What is the new behavior (if this is a feature change)?

Adds notification messages for hauler download and hauler serve (not the store version).

• Does this PR introduce a breaking change? (What changes might users need to make in their application due to this PR?)

No

• Other information:

[dweomer]

👍