Add a scala package to include scala utility classes and methods

[t-ober]

• add Scala support - Scala 3? - check for compatibility issues

• @t-ober add QuantityUtils

• @johanneshiry check SIMONA for stuff to transfer

[johanneshiry]

We should also add the following code in build.gradle to make the main branch build again:

tasks.withType(Javadoc){
	options.encoding = 'UTF-8'
}