Add windows protobuf generation support

build.gradle

@@ -6,7 +6,7 @@ buildscript {
         jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.6.2'
+        classpath 'com.android.tools.build:gradle:3.6.3'
         classpath 'com.google.protobuf:protobuf-gradle-plugin:0.8.10'
 
         // NOTE: Do not place your application dependencies here; they belong

protobuf/build.gradle

@@ -2,6 +2,7 @@ plugins {
     id 'java'
     id 'com.google.protobuf'
     id 'idea'
+    id "com.google.osdetector"
 }
 
 configurations {
@@ -19,7 +20,9 @@ protobuf {
         grpc {
             artifact = 'io.grpc:protoc-gen-grpc-java:1.28.1' // CURRENT_GRPC_VERSION
         }
-        grpc_python { path = "$projectDir/grpc_python_plugin" }
+        grpc_python {
+            path = "$projectDir/grpc_plugins/grpc_python_plugin_1.28.1-${osdetector.classifier}"
+        }
     }
     generateProtoTasks {
         all().each { task ->