Add downloaded blobs to package tarball

[pfmooney]

While updating propolis to from its quite old (0.9) version of omicron-zone-package, I noticed that the S3 blobs included in its manifest were being downloaded but not appended to the archive. It appears that such functionality was disrupted as part of the overhaul in #60.

This should restore blob inclusion in the package.

[smklein]

Ah, thanks for patching this!

[pfmooney]

Testing notes

Tarball contents for propolis-server (using omicron-zone-package 0.12) prior to this change:

-rw-r--r--   0/0       63 Jul 24 01:21 2006 oxide.json
-rwxr-xr-x   0/0        0 Jul 24 01:21 2006 root/
-rwxr-xr-x   0/0        0 Jul 24 01:21 2006 root/var
-rwxr-xr-x   0/0        0 Jul 24 01:21 2006 root/var/svc
-rwxr-xr-x   0/0        0 Jul 24 01:21 2006 root/var/svc/manifest
-rwxr-xr-x   0/0        0 Jul 24 01:21 2006 root/var/svc/manifest/site
-rwxr-xr-x   0/0        0 Jul 24 01:21 2006 root/var/svc/manifest/site/propolis-server
-rw-r--r--   0/0     1795 Jul 24 01:21 2006 root/var/svc/manifest/site/propolis-server/manifest.xml
-rwxr-xr-x   0/0        0 Jul 24 01:21 2006 root/
-rwxr-xr-x   0/0        0 Jul 24 01:21 2006 root/opt
-rwxr-xr-x   0/0        0 Jul 24 01:21 2006 root/opt/oxide
-rwxr-xr-x   0/0        0 Jul 24 01:21 2006 root/opt/oxide/lib
-rwxr-xr-x   0/0        0 Jul 24 01:21 2006 root/opt/oxide/lib/svc
-rwxr-xr-x   0/0        0 Jul 24 01:21 2006 root/opt/oxide/lib/svc/manifest
-rwxr-xr-x   0/0        0 Jul 24 01:21 2006 root/opt/oxide/lib/svc/manifest/propolis
-rwxr-xr-x   0/0     1320 Jul 24 01:21 2006 root/opt/oxide/lib/svc/manifest/propolis/propolis.sh
-rwxr-xr-x   0/0        0 Jul 24 01:21 2006 root/
-rwxr-xr-x   0/0        0 Jul 24 01:21 2006 root/opt
-rwxr-xr-x   0/0        0 Jul 24 01:21 2006 root/opt/oxide
-rwxr-xr-x   0/0        0 Jul 24 01:21 2006 root/opt/oxide/propolis-server
-rwxr-xr-x   0/0        0 Jul 24 01:21 2006 root/opt/oxide/propolis-server/bin
-rwxr-xr-x   0/0   62427560 Jul 24 01:21 2006 root/opt/oxide/propolis-server/bin/propolis-server

And using a cargo-patched version with the change:

-rw-r--r--   0/0       63 Jul 24 01:21 2006 oxide.json
-rwxr-xr-x   0/0        0 Jul 24 01:21 2006 root/
-rwxr-xr-x   0/0        0 Jul 24 01:21 2006 root/var
-rwxr-xr-x   0/0        0 Jul 24 01:21 2006 root/var/svc
-rwxr-xr-x   0/0        0 Jul 24 01:21 2006 root/var/svc/manifest
-rwxr-xr-x   0/0        0 Jul 24 01:21 2006 root/var/svc/manifest/site
-rwxr-xr-x   0/0        0 Jul 24 01:21 2006 root/var/svc/manifest/site/propolis-server
-rw-r--r--   0/0     1795 Jul 24 01:21 2006 root/var/svc/manifest/site/propolis-server/manifest.xml
-rwxr-xr-x   0/0        0 Jul 24 01:21 2006 root/
-rwxr-xr-x   0/0        0 Jul 24 01:21 2006 root/opt
-rwxr-xr-x   0/0        0 Jul 24 01:21 2006 root/opt/oxide
-rwxr-xr-x   0/0        0 Jul 24 01:21 2006 root/opt/oxide/lib
-rwxr-xr-x   0/0        0 Jul 24 01:21 2006 root/opt/oxide/lib/svc
-rwxr-xr-x   0/0        0 Jul 24 01:21 2006 root/opt/oxide/lib/svc/manifest
-rwxr-xr-x   0/0        0 Jul 24 01:21 2006 root/opt/oxide/lib/svc/manifest/propolis
-rwxr-xr-x   0/0     1320 Jul 24 01:21 2006 root/opt/oxide/lib/svc/manifest/propolis/propolis.sh
-rwxr-xr-x   0/0        0 Jul 24 01:21 2006 root/
-rwxr-xr-x   0/0        0 Jul 24 01:21 2006 root/opt
-rwxr-xr-x   0/0        0 Jul 24 01:21 2006 root/opt/oxide
-rwxr-xr-x   0/0        0 Jul 24 01:21 2006 root/opt/oxide/propolis-server
-rwxr-xr-x   0/0        0 Jul 24 01:21 2006 root/opt/oxide/propolis-server/bin
-rwxr-xr-x   0/0   62427560 Jul 24 01:21 2006 root/opt/oxide/propolis-server/bin/propolis-server
-rw-r--r--   0/0   49283072 Jul 24 01:21 2006 root/opt/oxide/propolis-server/blob/alpine.iso
-rw-r--r--   0/0   1966080 Jul 24 01:21 2006 root/opt/oxide/propolis-server/blob/OVMF_CODE.fd