Migrate speech to text example app to swift package manager & fix compile errors (#1402)

Author: Jake-Prickett

Examples/Google/SpeechToText/Makefile

@@ -13,6 +13,7 @@ protos:
 generate:
 	protoc \
 	googleapis/google/cloud/speech/v1/cloud_speech.proto \
+	googleapis/google/cloud/speech/v1/resource.proto \
 	googleapis/google/rpc/status.proto \
 	googleapis/google/api/client.proto \
 	googleapis/google/api/annotations.proto \
@@ -25,9 +26,8 @@ generate:
 	mkdir -p Sources/Generated
 	find google/ -name \*.swift -exec cp {} Sources/Generated/ \;
 
-## clean	     : Clean workspace and start from scratch (remove googleapis, generated swift, pods, etc.)
+## clean	     : Clean workspace and start from scratch (remove googleapis, generated swift, etc.)
 clean:
-	rm -rf Pods/
 	rm -rf googleapis/
 	rm -rf google/
 	rm Sources/Generated/*

Examples/Google/SpeechToText/Podfile

@@ -18,11 +18,11 @@ This project requires a Google Cloud API Key. Please [register](https://cloud.go
 
 ## Project Setup
 1. Clone the repository
-2. Navigate to the root directory (`Examples/Google/SpeechToText`) and run `pod install`
+2. Navigate to the root directory (`Examples/Google/SpeechToText`)
 3. Run `make protos` to pull the most recent .proto files from the googleapis repository
 4. run `make generate` to leverage the `protoc` plugin to generate the Swift interfaces
     - Note: Please refer to [Getting the `protoc` Plugins](https://github.com/grpc/grpc-swift#getting-the-protoc-plugins). For this tutorial, the Makefile requires that the `protoc-gen-grpc-swift` and `protoc-gen-swift` are on the users PATH.
-5. Open the `.xcworkspace`
+5. Open the `.xcodeproj`
 6. Open the `Constants.swift` file and assign your generated Google Cloud API Key to the `apiKey` variable.
     - Note: Once you add the API Key, feel free to remove the forced warning/reminder on line 23.
 7. Run the application!

Examples/Google/SpeechToText/Podfile.lock

@@ -14,6 +14,7 @@
  * limitations under the License.
  */
 
+import Foundation
 import GRPC
 import Logging
 
@@ -50,7 +51,7 @@ final class SpeechService {
 
     // Create a connection secured with TLS to Google's speech service running on our `EventLoopGroup`
     let channel = ClientConnection
-      .secure(group: group)
+      .usingPlatformAppropriateTLS(for: group)
       .withBackgroundActivityLogger(logger)
       .connect(host: "speech.googleapis.com", port: 443)