Change package names zero->boot

* actuator -> boot-ops
* cli -> boot-cli
* launcher -> boot-load
* autoconfig -> boot-config
* bootstrap -> boot-strap
* starters -> boot-up

[#54095231] [bs-253] Refactor Zero->Boot

spring-boot-samples/spring-boot-sample-ops/start.groovy

@@ -0,0 +1,5 @@
+@Grab("org.springframework.boot:spring-boot-up-ops:0.5.0.BUILD-SNAPSHOT")
+@Grab("org.springframework.boot:spring-boot-up-web:0.5.0.BUILD-SNAPSHOT")
+@ComponentScan("org.springframework.boot.sample.service")
+class Start {
+}