Implement initial design, and then some more

This is a very early version of the ACTS report tool.  Given a pipeline
number, it can extract test results from GitLab and render a standalone
Excel document with the same information.

The document has very basic style, but has all the relevant data.
The first sheet contains the summary. Remaining sheets show data
from a specific test suite.

Closes: #2
Signed-off-by: Zygmunt Krynicki <zygmunt.krynicki@huawei.com>
2 jobs for !1 with feature/prototype in 43 seconds (queued for 31 seconds)
latest detached
Status Job ID Name Coverage
  .Pre
passed #12916
mandatory-dco

00:00:11

 
  Compliance
passed #12917
dco

00:00:32