Update docker environment

See merge request !112

Enable the official Gitlab - Sonarqube integration

See merge request !111

Do not quit when opening an unsupported file

See merge request !110

Bug noticed when trying to open an OTF2 trace file while ViTE was built
without OTF2 support. It was suddenly exiting ViTE, making it look
like a crash.

Now, do not exit ViTE in such case, so the error message can be read by
the user.

Fix some Coverity and SonarCube bugs

See merge request !105

Add warning "Infinite loop constently opening a new window using Boost when applying zoom"

Closes #68

See merge request !104

Fix interval select display

See merge request !102

Improve the OTF2 parser

See merge request !109

Add multi-trace support for select information window

See merge request !101