ui chassis: gradle build invalid

[planetf1]

When testing the egeria 4.0 build, I noticed that the ui server chassis fails to start:

➜  etc kubectl logs lab-odpi-egeria-lab-ui-54c5bdbbb4-w4vth --previous
INFO exec  java -XX:MaxRAMPercentage=80.0 -XX:+UseParallelGC -XX:MinHeapFreeRatio=10 -XX:MaxHeapFreeRatio=20 -XX:GCTimeRatio=4 -XX:AdaptiveSizePolicyWeight=90 -XX:+ExitOnOutOfMemoryError -XX:MaxMetaspaceSize=1g -cp "." -jar /deployments/user-interface/ui-chassis-spring-4.0-SNAPSHOT.jar
no main manifest attribute, in /deployments/user-interface/ui-chassis-spring-4.0-SNAPSHOT.jar

The same occurs direct in the build

➜  libs git:(40builda) ls
ui-chassis-spring-4.0-SNAPSHOT-javadoc.jar ui-chassis-spring-4.0-SNAPSHOT-sources.jar ui-chassis-spring-4.0-SNAPSHOT.jar
➜  libs git:(40builda) java -jar ./ui-chassis-spring-4.0-SNAPSHOT.jar
no main manifest attribute, in ./ui-chassis-spring-4.0-SNAPSHOT.jar
➜  libs git:(40builda) pwd
/Users/jonesn/src/egeria/v4/open-metadata-implementation/user-interfaces/ui-chassis/ui-chassis-spring/build/libs
➜  libs git:(40builda)

This will be due to an issue in the build.gradle for the ui server chassis

[planetf1]

This was due to missing spring plugin/springboot setup in the ui chassis gradle build.

Fixed, and corrected gradle dependencies

Tested chassis launches correctly (but not all function)

This is now fixed for v4 under 6e5b08e
I will cherry-pick this for v3