Update BlazePose URL params

[Misterr-H]

Recently, I've pushed update to use blazePose model as well along with PoseNet, blazePose is on different server.
Have to Integerate both blazePose and PoseNet in one codebase server that can be interchanged using URL params.
Reply to this thread to get blazePose server code.
PoseNet server code is on repo Misterr-H/react-native-human-pose-server