feat: handle ingest of zipped bundles

[DinoChiesa]

This modifies the cli to now be able to handle zipped bundles (either proxy or sharedflow) .

Use the same -s switch to pass the source. In the case of a zip, the tool will unzip the bundle to a tmp directory, and then perform the analysis. The tool automatically removes the temp directory after completing the analysis.

One wrinkle:

• If there are errors or warnings, the tool will report these errors with filenames expressed relative to the zip file, using filenames that are not "real", eg

/usr/local/home/me/apiproxy-20241206-191914.zip/apiproxy/proxies/endpoint1.xml

║ Line     │ Column   │ Type     │ Message                                                │ Rule ID              ║
╟──────────┼──────────┼──────────┼────────────────────────────────────────────────────────┼──────────────────────╢
║ 91       │ 3        │ error    │ Multiple RouteRules with no Condition. Only the        │ PD002                ║
║          │          │          │ first is evaluated.                                    │                      ║

/usr/local/home/me/apiproxy-20241206-191914.zip/apiproxy/policies/SC-Unused.xml

║ Line     │ Column   │ Type     │ Message                                                │ Rule ID              ║
╟──────────┼──────────┼──────────┼────────────────────────────────────────────────────────┼──────────────────────╢
║ 0        │ 0        │ warning  │ SC-Unused is not attached to a Step in the bundle.     │ BN005                ║
║          │          │          │ Remove unused policies.                                │                      ║

There are a bunch of changes in this PR to tests, because of the handling of these relative filenames.

WDYT?