fix: store raw information of a container

[mdelapenya]

What does this PR do?

It stores raw information of a container (JSON format) in the Docker Container struct

Why is it important?

Caused by #271, where we are getting the state of a container from the Docker client, but we did not add the field

[codecov]

Codecov Report

Merging #334 (3f7261c) into master (066c492) will decrease coverage by 2.92%.
The diff coverage is 44.60%.

@@            Coverage Diff             @@
##           master     #334      +/-   ##
==========================================
- Coverage   64.04%   61.11%   -2.93%     
==========================================
  Files          13       15       +2     
  Lines         865      985     +120     
==========================================
+ Hits          554      602      +48     
- Misses        226      291      +65     
- Partials       85       92       +7     

Impacted Files	Coverage Δ
wait/health.go	0.00% <0.00%> (ø)
wait/sql.go	0.00% <0.00%> (ø)
wait/wait.go	100.00% <ø> (ø)
wait/http.go	56.04% <28.57%> (-1.43%)	⬇️
wait/host_port.go	56.14% <30.76%> (-4.28%)	⬇️
wait/exit.go	48.00% <48.00%> (ø)
docker.go	63.99% <51.72%> (-1.84%)	⬇️
compose.go	74.04% <75.75%> (+0.57%)	⬆️
container.go	85.29% <100.00%> (+0.91%)	⬆️
wait/log.go	75.75% <100.00%> (-2.03%)	⬇️
... and 3 more

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[gianarb]

Thanks a lot