Incorrect message in publish_topic in exterior_service.proto

[neelam-kushwah]

In exterior_service.proto, the publish topic is defined as:
option (uprotocol.publish_topic) = { id : 0x8001, name : "exterior_environment", message : "SolarInformation" };
This should be updated to:
option (uprotocol.publish_topic) = { id : 0x8001, name : "exterior_environment", message : "Temperature" };