Update tests

Update and add tests, notably new ones to check that transforms are applied properly during loading.

Closes #40 (closed)

added 9 commits

• 6ec17405 - [ci] Add a .toml file to specify DB paths in the CI
• a35f4c6e - [ci] Change DB config paths
• 1f326f68 - [ci] Use CI_PROJECT_DIR variable
• fe2562b5 - [test] Remove code to load test-database.zip
• 3a3775e7 - [gitlab-ci] Re-add libgl1 installation command
• 751a38bc - [test] Ignore edge values when comparing histograms
• ab524a4e - [test] Statistical comparison of histograms
• f3f94d64 - [test] Handle RGB histograms comparison + select comparison method
• 147da72b - Merge branch 'ci-db-paths' into 'update-tests'

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added 2 commits

• b3c629ab - [conda] Add grad-cam to run requirements
• 117d75e0 - [test] Remove commented cli tests

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added 1 commit

• 29312e48 - [conda] typo

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added 1 commit

• ce12edba - [gitlab-ci] Add missing libgl package when building in docker

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added 1 commit

• d93a4ec7 - [gitla-ci] Add missing reference

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added 1 commit

• 53c39706 - [gitlab-ci] Install git in overriden before-script

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added 1 commit

• f6342125 - [engine.saliency.viewer] Fix --show-groundtruth

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added 1 commit

• 65d19eaa - [ci] Modify conda-package stage to add libGL install (required by opencv)

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added 1 commit

• 1c9ce4ba - [meta.yaml] Max pin the grad-cam package

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mentioned in commit ce135a5d

merged