scripted-diff: Replace NET_TOR with NET_ONION

Summary:
-BEGIN VERIFY SCRIPT-

sed --in-place'' --expression='s/NET_TOR/NET_ONION/g' $(git grep -I --files-with-matches 'NET_TOR')

-END VERIFY SCRIPT-

The --in-place'' hack is required for sed on macOS to edit files in-place without passing a backup extension.

This is a backprt of Core PR13575

Depends on D2823

Test Plan:

make check

Reviewers: #bitcoin_abc, Fabien

Reviewed By: #bitcoin_abc, Fabien

Subscribers: Fabien

Differential Revision: https://reviews.bitcoinabc.org/D2824