Adding setLogLevel feature

[moleksy]

• Features:
• • Use mesh::log::setLogLevel(mesh::log::Level) to dynamically adjust log filtering.
• • Supported log levels: info, warn, error, debug, fatal.
• • Messages below the set log level will be ignored.

[moleksy]

How it works:

[ko80]

I suppose the logger functionality should be moved to shared first https://github.com/OpenVisualCloud/Media-Communications-Mesh/tree/zero-copy-2/shared

And after that, this the log level feature could be added.