add face detection using mlkit
add enable tracking prop
cleanup android set tracking methods
remove old face detection
fix basic example not building on ios
* switch to firebase mlkit for text recognition
* migrate android to MLKit
migrate Text detection android to MLKit
update gradle of example app
Update build.gradle
separate gms vision facedetector to general flavor
migrate faceDetector to mlkit and fix incorrect bounds due to padding
migrate barCode detector to mlkit
update android instructions in readme
safe face implementation move gms to generalImplementation
* add mlkit example
setup android of mlkit example
setup ios of mlkit example
fix typo in readme
update example project readme
* amend mlkit migration to include raw data
add barcode detection in basic and mlkit examples
* fix duplicate bridgeDidBackground method
BREAKING CHANGE: We migrated to MLKit instead of Google Mobile Vision
* added react-navigation
* added barcode scanner example
* exposed barcode bounds and source dimensions in google vision barcode
* updated typescript types for google vision barcode
