Create multiproject build, add python grpc build support

app/build.gradle

@@ -1,5 +1,7 @@
-apply plugin: 'com.android.application'
-apply plugin: 'com.google.protobuf'
+
+plugins{
+    id 'com.android.application'
+}
 
 android {
     compileSdkVersion 29
@@ -24,38 +26,19 @@ android {
     }
 }
 
-protobuf {
-    protoc { artifact = 'com.google.protobuf:protoc:3.10.0' }
-    plugins {
-        javalite { artifact = "com.google.protobuf:protoc-gen-javalite:3.0.0" }
-        grpc {
-            artifact = 'io.grpc:protoc-gen-grpc-java:1.25.0'
-        }
-    }
-    generateProtoTasks {
-        all().each { task ->
-            task.plugins {
-                javalite {}
-                grpc { // Options added to --grpc_out
-                    option 'lite'
-                }
-            }
-        }
-    }
-}
-
 dependencies {
+    implementation project(':protobuf')
     implementation fileTree(dir: 'libs', include: ['*.jar'])
     implementation 'androidx.appcompat:appcompat:1.1.0'
     implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
     implementation 'com.google.android.material:material:1.1.0'
-    implementation 'androidx.preference:preference:1.1.0'
+    implementation 'androidx.preference:preference:1.1.1'
     testImplementation 'junit:junit:4.12'
     androidTestImplementation 'androidx.test:runner:1.2.0'
     androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'
-    implementation 'io.grpc:grpc-okhttp:1.25.0'
-    implementation 'io.grpc:grpc-protobuf-lite:1.25.0'
-    implementation 'io.grpc:grpc-stub:1.25.0'
+    implementation 'io.grpc:grpc-okhttp:1.28.1' // CURRENT_GRPC_VERSION
+    implementation 'io.grpc:grpc-protobuf-lite:1.28.1' // CURRENT_GRPC_VERSION
+    implementation 'io.grpc:grpc-stub:1.28.1' // CURRENT_GRPC_VERSION
     implementation 'javax.annotation:javax.annotation-api:1.2'
     implementation 'org.zeromq:jeromq:0.5.2'
 }

app/src/main/proto/SlamController.proto

@@ -1,34 +0,0 @@
-syntax = "proto3";
-
-option java_multiple_files = true;
-option java_package = "org.vato.carcontroller";
-option java_outer_classname = "SlamControllerProto";
-
-import "empty.proto";
-
-message SlamDetails {
-    int32 map_size_pixels = 1;
-    int32 map_size_meters = 2;
-    int32 port = 3;
-}
-
-message SlamRow{
-    repeated int32 points = 1;
-}
-
-message SlamLocation{
-    float x = 1;
-    float y = 2;
-    float theta = 3;
-}
-
-message SlamScan{
-    bytes map = 1;
-    SlamLocation location = 2;
-}
-
-service SlamControl {
-    rpc start_map_streaming(SlamDetails) returns (Empty) {}
-
-    rpc stop_streaming(Empty) returns (Empty) {}
-}

app/src/main/proto/empty.proto

@@ -1,9 +0,0 @@
-syntax = "proto3";
-
-option java_multiple_files = true;
-option java_package = "org.vato.carcontroller";
-option java_outer_classname = "EmptyProto";
-
-message Empty{
-
-}

app/src/main/proto/lidar_tracker.proto

@@ -1,31 +0,0 @@
-syntax = "proto3";
-
-package persontracking;
-
-option java_multiple_files = true;
-option java_package = "org.vato.carcontroller";
-option java_outer_classname = "PersonTrackingProto";
-
-import "empty.proto";
-
-message Int32Value{
-    int32 value = 1;
-}
-
-message Point{
-    double angle = 1;
-    int32 distance = 2;
-    int32 group_number = 3;
-}
-
-message PointScan{
-    repeated Point points = 1;
-}
-
-service PersonTracking{
-    rpc set_tracking_group(Int32Value) returns (Empty) {}
-
-    rpc stop_tracking(Empty) returns (Empty) {}
-
-    rpc start_tracking(Int32Value) returns (Empty) {}
-}

app/src/main/proto/motorService.proto

@@ -1,29 +0,0 @@
-syntax = "proto3";
-
-
-package MotorControl;
-
-option java_multiple_files = true;
-option java_package = "org.vato.carcontroller";
-option java_outer_classname = "MotorServiceProto";
-
-message ThrottleRequest{
-    float throttle = 1;
-}
-
-message ThrottleResponse{
-    bool throttleSet = 1;
-}
-
-message SteeringRequest{
-    float steering = 1;
-}
-
-message SteeringResponse{
-    bool steeringSet = 1;
-}
-
-service CarControl{
-    rpc SetThrottle(ThrottleRequest) returns (ThrottleResponse){}
-    rpc SetSteering(SteeringRequest) returns (SteeringResponse){}
-}