Add dev service

dev.proto

@@ -0,0 +1,31 @@
+syntax = "proto3";
+
+option go_package = "git.itzana.me/strafesnet/go-grpc/dev";
+
+package dev;
+
+service DevService {
+  rpc Validate(APIValidationRequest) returns (APIValidationResponse);
+}
+
+message APIValidationRequest {
+  string Service = 1;
+  string Permission = 2;
+  string Key = 3;
+}
+
+message APIValidationResponse {
+  // Response
+  bool Valid = 1;
+  string ErrorMessage = 2;
+  int32 StatusCode = 3;
+  // Remaining limits
+  uint64 RemainingBurst = 4;
+  uint64 RemainingDaily = 5;
+  uint64 RemainingMonthly = 6;
+  // Quota
+  uint64 BurstLimit = 7;
+  uint64 BurstDurationSeconds = 8;
+  uint64 DailyLimit = 9;
+  uint64 MonthlyLimit = 10;
+}