[dev] upd Alive model

v1/plugin.proto

@@ -5,9 +5,8 @@ package plugin;
 option go_package = ".";
 
 message ExecIn {
-	string service = 1;
-	string method = 2;
-	string params = 3;
+	string method = 1;
+	string params = 2;
 }
 
 message ExecOut {
@@ -22,7 +21,15 @@ message ListOut {
 	map<string, string> list = 1;
 }
 
+message AliveIn {
+}
+
+message AliveOut {
+	map<string, string> list = 1;
+}
+
 service Plugin {
+	rpc Alive(AliveIn) returns (AliveOut);
 	rpc Exec(ExecIn) returns (ExecOut);
 	rpc List(ListIn) returns (ListOut);
 }