Include grpc netcode generation into gradle build chain.

client/android/Notifier/app/build.gradle

 plugins {
     id 'com.android.application'
+    id 'com.google.protobuf' version '0.8.17'
 }
 
 android {
@@ -25,8 +26,38 @@ android {
         sourceCompatibility JavaVersion.VERSION_1_8
         targetCompatibility JavaVersion.VERSION_1_8
     }
+
+    sourceSets {
+        main {
+            proto {
+                srcDirs "../../../../shared"
+            }
+        }
+    }
+}
+
+protobuf {
+    protoc {
+        artifact = "com.google.protobuf:protoc:3.19.2"
+    }
+    plugins {
+        grpc {
+            artifact = 'io.grpc:protoc-gen-grpc-java:1.45.1'
+        }
+    }
+    generateProtoTasks {
+        all().each { task ->
+            task.builtins {
+                java { option 'lite' }
+            }
+            task.plugins {
+                grpc { option 'lite' }
+            }
+        }
+    }
 }
 
+
 dependencies {
 
     implementation "androidx.core:core:1.7.0"
@@ -36,4 +67,9 @@ dependencies {
     testImplementation 'junit:junit:4.13.2'
     androidTestImplementation 'androidx.test.ext:junit:1.1.3'
     androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'
+
+    implementation 'io.grpc:grpc-okhttp:1.45.1'
+    implementation 'io.grpc:grpc-protobuf-lite:1.45.1'
+    implementation 'io.grpc:grpc-stub:1.45.1'
+    compileOnly 'org.apache.tomcat:annotations-api:6.0.53' // necessary for Java 9+
 }
\ No newline at end of file

shared/netcode.proto

 syntax = "proto3";
+
+option java_multiple_files = true;
+option java_package = "io.grpc.notifier";
+option java_outer_classname = "NotifierComProto";
+option objc_class_prefix = "NC";
+
 package netcode;
 
 service NotifierCom {