Aspire: Add WithProtoDefinition to support proto definition at server level (#1383)

* Add property UseHttp2 to WireMockServerArguments

* .

* additionalUrls

* ok?

* WireMockServerArguments

* fx

* AddProtoDefinition

* ...

* FIX

* Always add the lifecycle hook to support dynamic mappings and proto definitions

examples-Aspire/AspireApp1.AppHost/__admin/mappings/greet.proto

@@ -0,0 +1,21 @@
+syntax = "proto3";
+
+package greet;
+
+service Greeter {
+  rpc SayHello (HelloRequest) returns (HelloReply);
+}
+
+message HelloRequest {
+  string name = 1;
+}
+
+message HelloReply {
+  string message = 1;
+  enum PhoneType {
+    none = 0;
+    mobile = 1;
+    home = 2;
+  }
+  PhoneType phoneType = 2;
+}