Merge develop into main

Various changes and additions.

Most notably the Start Script templating, but also many dependency updates and little fixes and refactorings.

build.gradle

@@ -17,7 +17,7 @@ plugins {
   id 'edu.sc.seis.launch4j' version '2.5.3'
   id 'org.siouan.frontend-jdk8' version '6.0.0'
   id 'org.springframework.boot' version '2.7.1'
-  id 'io.spring.dependency-management' version '1.0.11.RELEASE'
+  id 'io.spring.dependency-management' version '1.0.12.RELEASE'
 }
 
 sourceCompatibility = targetCompatibility = '1.8'