[SeveralApplication] Adding benchmarks to some apps

[loumalouomega]

📝 Description

Adding benchmarks to some apps (just the most common and relevant...and my app), not adding to every app as it is tiresome, if someone wants the benchmarks it is just a matter of copying and adapting the CMake code.

🆕 Changelog

• Adding benchmarks to CL app
• Adding benchmark to contact app
• Adding benchmark for fluid app
• Adding benchmarks in structural app

[ddiezrod]

thanks @loumalouomega , it works correctly