fuse.py only import VidjilParser if used

So that dependencies only need to be installed if VidjilParser is used.
Thanks @mikael-s :)
2 jobs for vidjil_parser_prototype in 3 seconds (queued for 1 second)
Status Job ID Name Coverage
  Test Tools
failed #140018
test_tools

00:00:03

failed #136299
test_tools

00:00:04

 
Name Stage Failure
failed
test_tools Test Tools There is an unknown failure, please try again
make[1]: Entering directory '/home/gitlab-runner/builds/b8d876c1/0/vidjil/vidjil/doc'
python ../tools/org-babel-tangle.py --all format-analysis.org
make[1]: Leaving directory '/home/gitlab-runner/builds/b8d876c1/0/vidjil/vidjil/doc'
python3 ../should.py should-get-tests/*.should-get
Python >= 3.5 required
Makefile:8: recipe for target 'should' failed
make: *** [should] Error 1
make: Leaving directory '/home/gitlab-runner/builds/b8d876c1/0/vidjil/vidjil/tools/tests'
ERROR: Job failed: exit status 1