Web-intent add new Cordova Properties

[geferon]

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[ ] bug report
[X] feature request
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Current behavior:
None, as this is not a bug

Expected behavior:
Due to a recent update on the plugin darryncampbell-cordova-plugin-intent, and to also recent versions of Android, two new constant variables (Actions) have been added, this being ACTION_INSTALL_PACKAGE and ACTION_UNINSTALL_PACKAGE (as seen here).

Steps to reproduce:
None

Related code:
Plugin new constants: https://github.com/darryncampbell/darryncampbell-cordova-plugin-intent/blob/00f9f1e42381dc45c3d30310e647cbe26845e926/www/IntentShim.js#L18-L19

Only two new properties would be needed in the file: https://github.com/ionic-team/ionic-native/blob/master/src/%40ionic-native/plugins/web-intent/index.ts
which would be as following:

   /**
   * Convenience constant for actions
   * @type {string}
   */
  @CordovaProperty() ACTION_INSTALL_PACKAGE: string;
  
  /**
   * Convenience constant for actions
   * @type {string}
   */
  @CordovaProperty() ACTION_UNINSTALL_PACKAGE: string;

Other information:
None

Ionic info: (run ionic info from a terminal/cmd prompt and paste output below):
I don't believe this would be needed but, anyways:

Ionic:

   ionic (Ionic CLI)          : 4.1.1 (C:\Users\Jorge\AppData\Roaming\npm\node_modules\ionic)
   Ionic Framework            : @ionic/angular 4.0.0-beta.7
   @angular-devkit/core       : 0.7.5
   @angular-devkit/schematics : 0.7.5
   @angular/cli               : 6.1.5
   @ionic/ng-toolkit          : 1.0.7
   @ionic/schematics-angular  : 1.0.5

Cordova:

   cordova (Cordova CLI) : 8.0.0
   Cordova Platforms     : android 7.0.0, browser 5.0.3
   Cordova Plugins       : cordova-plugin-ionic-keyboard 2.1.2, cordova-plugin-ionic-webview 1.2.1, (and 19 other plugins)

System:

   Android SDK Tools : 26.1.1 (C:\Users\Jorge\AppData\Local\Android\Sdk)
   NodeJS            : v9.4.0 (C:\Program Files\nodejs\node.exe)
   npm               : 6.4.1
   OS                : Windows 10