**Description**:
Use full ORT package for onnxruntime-react-native.
Left the params required for the mobile build in comments so they're
easily discovered if we need to create onnxruntime-react-native-mobile
in the future.
**Motivation and Context**
Remove barrier to using ORT with react native as the mobile package that
was being used supports a limited range of opsets/operators/types, and
requires ORT format models. The full package will run any model.
* Change full ort to mobile ort
* Update Android example to load mobile ort
* Change the format of test models to ort
* update ios to use mobile ort
* revise README
* use onnxruntime-mobile-c CocoaPods in a npm package
* onnxruntime react native binding
* add react native backend
* fix lint comments
* fix react native backend for ios
* remove unnecessary files to check in
* move onnxruntime-common to devDependency
* create two podspec files for iphoneos and iphonesimulator
* revise README.md and add third party notices for react native
* rename a package
* rename a package and revise README
* add a license into package.json
* revise README and comments
* fix typo
* fix lint errors
* fix lint errors
* add a prepack script. touch index.tsx and App.tsx to resolve CI issue
* remove a unsupported tsx format from clang-format
* fix a type and add steps tp publish a react native npm package
* resolve comments
* fix clang format
* remove promise wrap. change prepack to typescript
