Change order of tasks
Add .curry to .gitignore
Add old examples for put-based programming in Curry
Add Haskell examples for using putlenses
Add Curry files for combinator DSL

`Monadic.curry` contains the combinators corresponding to the putlenses DSL, which are reimplemented using the built-in nondeterminism instead of an underlying monad.
`Height.curry` and `People.curry` are examples files to test the implementation.