Fix lgtm.com analysis

[ptmerz]

The large example files in doc/examples/simulation_results make the lgtm.com analysis time out. This fixes this by excluding them from the analysis.

Todos

• [x] Check that lgtm.com analysis runs through now.

Status

• [x] Ready to go

[codecov[bot]]

Codecov Report

Merging #188 (b36e4cb) into master (6595d47) will not change coverage. The diff coverage is n/a.

[ptmerz]

LGTM.com analysis works for the PR branch now. Still times out because it tries to also build master for comparison.