Log SHA256 hash of built SDK.
Log SHA256 hash of built SDK.

Note that this changes the name of the SDK package to firebase_cpp_sdk.zip (and it will start out zipped, so you have to unzip it before you can run tests and such on it).

firebase/firebase-cpp-sdk,firebase/firebase-cpp-sdk,firebase/firebase-cpp-sdk,firebase/firebase-cpp-sdk,firebase/firebase-cpp-sdk,firebase/firebase-cpp-sdk,firebase/firebase-cpp-sdk,firebase/firebase-cpp-sdk