native-run doesn't walk symlinks in SDK packages, thus cannot detect API levels

**Version:**

1.7.2

**Description:**

Native-run can't find the installed API levels in my SDK when it is perfectly fine in Android studio.

And as a bonus, I dig through the source code, turns out it is walking through every folders and find package.xml to find api-level string in them
https://github.com/ionic-team/native-run/blob/88a49944427f1bd4a33e6f53d511f9c49330ebe6/src/android/utils/sdk/index.ts

In here, it uses readdirp to list directories to walk through, but the walk is missing folders such as platforms, sources, system-images and those folders are all symlinked (due to how android studio does things).

This is very annoying, definitely a bug.

**Command Output:**

```
native-run:android:utils:sdk:resolveSDKRoot Looking for $ANDROID_HOME +0ms
native-run:android:utils:sdk:resolveSDKRoot Looking for $ANDROID_SDK_ROOT +2ms
native-run:android:utils:sdk:resolveSDKRoot Using $ANDROID_SDK_ROOT at /usr/local/Cellar/android-sdk/24 +2ms
native-run:android:utils:sdk:resolveEmulatorHome Looking for $ANDROID_EMULATOR_HOME +0ms
native-run:android:utils:sdk:resolveEmulatorHome Looking at $HOME/.android +1ms
native-run:android:utils:sdk:resolveEmulatorHome Using $HOME/.android/ at /Users/penn/.android +0ms
native-run:android:utils:sdk:resolveAVDHome Looking for $ANDROID_AVD_HOME +0ms
native-run:android:utils:sdk:resolveAVDHome Looking at $HOME/.android/avd +0ms
native-run:android:utils:sdk:resolveAVDHome Using $HOME/.android/avd/ at /Users/penn/.android/avd +1ms
native-run:android:utils:sdk:findAllSDKPackages Walking /usr/local/Cellar/android-sdk/24 to discover SDK packages +0ms
native-run:android:utils:sdk:getSDKPackage Parsing /usr/local/Cellar/android-sdk/24/emulator/package.xml +0ms
native-run:android:utils:sdk:getSDKPackage Parsing /usr/local/Cellar/android-sdk/24/platform-tools/package.xml +0ms
native-run:android:utils:sdk:getSDKPackage Parsing /usr/local/Cellar/android-sdk/24/tools/package.xml +0ms
native-run:android:utils:sdk:getSDKPackage Parsing /usr/local/Cellar/android-sdk/24/build-tools/30.0.2/package.xml +0ms
native-run:android:utils:sdk:getSDKPackage Parsing /usr/local/Cellar/android-sdk/24/build-tools/34.0.0-rc3/package.xml +0ms
native-run:android:utils:sdk:getSDKPackage Parsing /usr/local/Cellar/android-sdk/24/cmdline-tools/latest/package.xml +0ms
native-run:android:utils:sdk:getSDKPackage Parsing /usr/local/Cellar/android-sdk/24/patcher/v4/package.xml +0ms
native-run:android:utils:sdk:api:getAPILevels Discovered installed API Levels: [] +0ms
SDK Location: /usr/local/Cellar/android-sdk/24
AVD Home: /Users/pencilcheck/.android/avd

Tools:

Android Emulator emulator 32.1.12
Android SDK Build-Tools 30.0.2 build-tools;30.0.2 30.0.2
Android SDK Build-Tools 34-rc3 build-tools;34.0.0-rc3 34.0.0
Android SDK Command-line Tools (latest) cmdline-tools;latest 9.0
Android SDK Platform-Tools platform-tools 34.0.1
Android SDK Tools tools 26.1.1
SDK Patch Applier v4 patcher;v4 1
```

**SDK Info:**

```
native-run:android:utils:sdk:resolveSDKRoot Looking for $ANDROID_HOME +0ms
native-run:android:utils:sdk:resolveSDKRoot Looking for $ANDROID_SDK_ROOT +2ms
native-run:android:utils:sdk:resolveSDKRoot Using $ANDROID_SDK_ROOT at /usr/local/Cellar/android-sdk/24 +2ms
native-run:android:utils:sdk:resolveEmulatorHome Looking for $ANDROID_EMULATOR_HOME +0ms
native-run:android:utils:sdk:resolveEmulatorHome Looking at $HOME/.android +1ms
native-run:android:utils:sdk:resolveEmulatorHome Using $HOME/.android/ at /Users/penn/.android +0ms
native-run:android:utils:sdk:resolveAVDHome Looking for $ANDROID_AVD_HOME +0ms
native-run:android:utils:sdk:resolveAVDHome Looking at $HOME/.android/avd +0ms
native-run:android:utils:sdk:resolveAVDHome Using $HOME/.android/avd/ at /Users/penn/.android/avd +1ms
native-run:android:utils:sdk:findAllSDKPackages Walking /usr/local/Cellar/android-sdk/24 to discover SDK packages +0ms
native-run:android:utils:sdk:getSDKPackage Parsing /usr/local/Cellar/android-sdk/24/emulator/package.xml +0ms
native-run:android:utils:sdk:getSDKPackage Parsing /usr/local/Cellar/android-sdk/24/platform-tools/package.xml +0ms
native-run:android:utils:sdk:getSDKPackage Parsing /usr/local/Cellar/android-sdk/24/tools/package.xml +0ms
native-run:android:utils:sdk:getSDKPackage Parsing /usr/local/Cellar/android-sdk/24/build-tools/30.0.2/package.xml +0ms
native-run:android:utils:sdk:getSDKPackage Parsing /usr/local/Cellar/android-sdk/24/build-tools/34.0.0-rc3/package.xml +0ms
native-run:android:utils:sdk:getSDKPackage Parsing /usr/local/Cellar/android-sdk/24/cmdline-tools/latest/package.xml +0ms
native-run:android:utils:sdk:getSDKPackage Parsing /usr/local/Cellar/android-sdk/24/patcher/v4/package.xml +0ms
native-run:android:utils:sdk:api:getAPILevels Discovered installed API Levels: [] +0ms
SDK Location: /usr/local/Cellar/android-sdk/24
AVD Home: /Users/pencilcheck/.android/avd

Tools:

Android Emulator emulator 32.1.12
Android SDK Build-Tools 30.0.2 build-tools;30.0.2 30.0.2
Android SDK Build-Tools 34-rc3 build-tools;34.0.0-rc3 34.0.0
Android SDK Command-line Tools (latest) cmdline-tools;latest 9.0
Android SDK Platform-Tools platform-tools 34.0.1
Android SDK Tools tools 26.1.1
SDK Patch Applier v4 patcher;v4 1
```