Merge pull request #27 from Tasssadar/delivery_sha256

Naming it sha256 is a bit untrue, but it is better than sha256Base64urlendodedDepadded ;)

If you notice some unmarked field or message which you can help with, don't hesitate to make pull requests. Thanks again.

Also, you can declare the dependency like this `implementation 'com.github.yeriomin:play-store-api:**master-SNAPSHOT**'` if you are in a hurry.

src/main/proto/GooglePlay.proto

@@ -15,6 +15,7 @@ message AndroidAppDeliveryData {
  optional bool immediateStartNeeded = 10;
  optional AndroidAppPatchData patchData = 11;
  optional EncryptionParams encryptionParams = 12;
+ optional string sha256 = 19;
 }
 message AndroidAppPatchData {
  optional int32 baseVersionCode = 1;