NXP-11660: Move mime type guesser to utils module and add relevant test
NXP-11660: Patch bad MIME types detected by Windows + handle the ones unknown by Windows in test case
NXP-11660: Test mime type / doc type association with a PDF and a JPG file + keep nuxeo-dm wizard.preset in ftest as Picture doc type comes with nuxeo-dm
NXP-11660: Add trace log about guessed mime type
Merge branch 'fix-NXP-11660-mime-type-detection-windows'