updated the java demo with debug points and jaeger tracing

demos/samples_java/weather_forcecast_service/arch_config.yaml

@@ -45,3 +45,7 @@ prompt_targets:
       name: weather_forecast_service
       path: /weather
       http_method: POST
+
+tracing:
+  random_sampling: 100
+  trace_arch_internal: true

demos/samples_java/weather_forcecast_service/docker-compose.yaml

@@ -19,3 +19,11 @@ services:
       - "host.docker.internal:host-gateway"
     volumes:
       - ./arch_config.yaml:/app/arch_config.yaml
+
+  jaeger:
+    build:
+      context: ../../shared/jaeger
+    ports:
+      - "16686:16686"
+      - "4317:4317"
+      - "4318:4318"