Consider Allowing JMS Autoconfig to use Java Credentials

[Mrc0113]

Consider expanding the Spring Boot JMS autoconfig to use the solace.java credential properties if solace.jms ones are not specified. This would allow for an app that uses Spring Boot JMS in conjunction with the Spring Cloud Stream Binder or Spring Boot JCSMP to only have to specify credentials once rather than twice like shown below:

solace:
  java:
    host: ${host:tcp://localhost:55555}
    msgVpn: ${msgVpn:default}
    clientUsername: ${clientUsername:default}
    clientPassword: ${clientPassword:default}
  jms:
    host: ${host:tcp://localhost:55555}
    msgVpn: ${msgVpn:default}
    clientUsername: ${clientUsername:default}
    clientPassword: ${clientPassword:default}