[SDK-1408] Add getBranchQRCode()

[nsingh-branch]

Added a new function, getBranchQRCode(), to generate Branch QR codes.

• getBranchQRCode()
  • Takes BranchQRCodeParams as a parameter, which consists of BranchShortUrlAnalytics, BranchShortUrlProperties, and BranchQRCodeSettings.
  • Returns BranchQRCodeResponse, which has one field named qrCode that is a base64 encoded string of the generated QR code image
  • Also updated the Android SDK to v5.2.0, the iOS SDK to v1.43.1, and the Capacitor SDK version to 4.2.0

Sample Code

public async createQRCode() {

      // optional fields
    var analytics = {
      channel: 'facebook',
      feature: 'onboarding',
      campaign: 'content 123 launch',
      stage: 'new user',
      tags: ['one', 'two', 'three']
    }

    // optional fields
    var properties = {
      $desktop_url: 'http://www.example.com/desktop',
      $android_url: 'http://www.example.com/android',
      $ios_url: 'http://www.example.com/ios',
      $ipad_url: 'http://www.example.com/ipad',
      $match_duration: 2000,
      custom_string: 'data',
      custom_integer: Date.now(),
      custom_boolean: true
    }

    var settings = {
      width: 2000,
      codeColor: "#3b2016",
      backgroundColor: "#c79200",
      centerLogo: "https://cdn.britannica.com/95/156695-131-FF89C9FA/oak-tree.jpg",
      margin: 3,
      imageFormat: "PNG"
    }

    BranchDeepLinks.getBranchQRCode({analytics, properties, settings}).then((res) => {
      this.picToView  = "data:image/png;base64," + res.qrCode;
    }).catch(function (err) {
      alert('Error getting QR code: ' + JSON.stringify(err) + err)
    })
  }