Partial update v2

CapgoCapacitorUpdater.podspec

@@ -16,5 +16,7 @@ Pod::Spec.new do |s|
   s.dependency 'SSZipArchive'
   s.dependency 'Alamofire'
   s.dependency 'Version'
+  s.dependency 'GZIP', '~> 1.3'
+  s.dependency 'SwiftyRSA'
   s.swift_version = '5.1'
 end

android/src/main/AndroidManifest.xml

@@ -1,5 +1,6 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android">
     <application>
         <service android:name="ee.forgr.capacitor_updater.DownloadService" />
+        <service android:name="ee.forgr.capacitor_updater.DownloadServiceV2" />
     </application>
 </manifest>

android/src/main/java/ee/forgr/capacitor_updater/BundleInfo.java

@@ -11,6 +11,8 @@
 import java.util.Date;
 import java.util.Objects;
 import java.util.TimeZone;
+import java.util.concurrent.atomic.AtomicInteger;
+
 import org.json.JSONException;
 import org.json.JSONObject;
 import org.json.JSONTokener;
@@ -30,6 +32,7 @@ public class BundleInfo {
   private final String version;
   private final String checksum;
   private final BundleStatus status;
+  private AtomicInteger filesToDownload;
 
   static {
     sdf.setTimeZone(TimeZone.getTimeZone("GMT"));
@@ -55,6 +58,18 @@ public BundleInfo(
     this(id, version, status, sdf.format(downloaded), checksum);
   }
 
+  public BundleInfo(
+    final String id,
+    final String version,
+    final BundleStatus status,
+    final Date downloaded,
+    final int filesToDownload,
+    final String checksum
+  ) {
+    this(id, version, status, sdf.format(downloaded), checksum);
+    this.filesToDownload = new AtomicInteger(filesToDownload);
+  }
+
   public BundleInfo(
     final String id,
     final String version,
@@ -94,6 +109,10 @@ public boolean isDownloaded() {
     );
   }
 
+  public int decreaseFilesToDownload() {
+    return this.filesToDownload.decrementAndGet();
+  }
+
   public String getDownloaded() {
     return this.isBuiltin() ? DOWNLOADED_BUILTIN : this.downloaded;
   }