Update gitignore

Update the provided gitignore to ensure that no files will be added to the repo accidentally.

added enhancement suggestion labels

created branch 11-update-gitignore to address this issue

By Schrödter, Tobias on 2020-07-01T09:00:14 (imported from GitLab project)

mentioned in merge request !4 (merged)

By Schrödter, Tobias on 2020-07-02T08:58:16 (imported from GitLab project)

closed via merge request !4 (merged)

By Kilic, Deniz on 2020-07-06T11:01:02 (imported from GitLab project)

mentioned in commit 90c39668

By Kilic, Deniz on 2020-07-06T11:01:03 (imported from GitLab project)

mentioned in commit 109786db