Port Base DSL to Java

[aman-dureja]

https://github.com/CategoricalData/hydra/blob/main/hydra-haskell/src/main/haskell/Hydra/Dsl/Base.hs

[joshsh]

Note: this is another DSL module which may or may not need to be ported 1:1 into Java. The functionality needs to be there, but it doesn't necessarily need to be encapsulated in a module called "Base"; whatever works best in Java.