✨ Add support for download static analysis (#475)

### Feature ###

Add support for composing and downloading the static analysis report.

New route: ` /applications/:id/analysis/report` endpoint returns the
analysis report _tarball_.

Adds `AnalysisWriter` used to create/write the Analysis resource to a
temporary file. This is needed to support being streamed which bounds
the memory footprint.

Adds `ReportWriter` used to compose and stream the analysis report
_tarball_. The AppLatestReport() delegates handling of the request to
the writer.

Dockerfile updated to copy the analysis report (tree) from the
static-report project image to /tmp/analysis/report. The tree is used
when creating the analysis report _tarball_.

### Side Effects ###
Created a _new_ `tar` package the provides common, symmetrical
functionality for reading and writing tar (g-zipped) content streams.
This also fixes the problem of existing implementations reading entire
files into memory. This will be used by the new endpoint for static
reports. The implementation has been improved to eliminate loading the
files into memory before zipping.

Added `/test/tar` functional tests.

Also, the BucketOwner & client getDir() and putDir() endpoints can be
stripped down and refactored to delegate to the _new_ `tar` package.

Adds: BaseHandler._Attachment_() method to simplify setting the
Content-Disposition header in multiple places.

closes #354

---------

Signed-off-by: Jeff Ortel <[email protected]>

Dockerfile

@@ -4,11 +4,14 @@ COPY --chown=1001:0 . .
 RUN make docker
 RUN git clone https://github.com/konveyor/tackle2-seed
 
+FROM quay.io/konveyor/static-report as report
+
 FROM registry.access.redhat.com/ubi9/ubi-minimal
 COPY --from=builder /opt/app-root/src/bin/hub /usr/local/bin/tackle-hub
 COPY --from=builder /opt/app-root/src/auth/roles.yaml /tmp/roles.yaml
 COPY --from=builder /opt/app-root/src/auth/users.yaml /tmp/users.yaml
 COPY --from=builder /opt/app-root/src/tackle2-seed/resources/ /tmp/seed
+COPY --from=report /usr/local/static-report /tmp/analysis/report
 
 RUN microdnf -y install \
   sqlite \