Merge pull request #5213 from prlanzarin/sfu-optimizations

labs/bbb-webrtc-sfu/lib/ProcessManager.js

labs/bbb-webrtc-sfu/lib/mcs-core/lib/constants/Constants.js

labs/bbb-webrtc-sfu/lib/mcs-core/lib/media/media-server.js

labs/bbb-webrtc-sfu/lib/mcs-core/lib/model/SdpSession.js

labs/bbb-webrtc-sfu/lib/screenshare/ScreenshareProcess.js

labs/bbb-webrtc-sfu/lib/video/VideoManager.js

labs/bbb-webrtc-sfu/lib/video/VideoProcess.js

labs/bbb-webrtc-sfu/server.js