chore: rework examples (#4225)

* remove unused examples

* init bare example with test app

* add react-native-video

* add test app suport in expo plugin

* expo plugin: skip keys that are already in pod file

* fix podfile

* add src files

* fix metro config

* finalize react native test app configuration

* init expo example

* remove old examples

* add guide for example

* Add link to examples apps in docs

* adopt bare example to CI tests

* update CI workflows

* CI build lib after node_modules install

* fix examples readme

* fix iOS CI

* Add Example for DRM

* Update examples/README.md

* fix links

* update examples README

* sync example code

* update README

examples/basic/babel.config.js

@@ -1,17 +0,0 @@
-const path = require('path');
-const pak = require('../../package.json');
-
-module.exports = {
-  presets: ['module:@react-native/babel-preset'],
-  plugins: [
-    [
-      'module-resolver',
-      {
-        alias: {
-          [pak.name]: path.join(__dirname, '../..', pak.source),
-          extensions: ['.tsx', '.ts', '.js', '.json'],
-        },
-      },
-    ],
-  ],
-};