* Add floating point numbers

* Add test-float.txt

* Remove unused ast from applyOperator parameters

* Add -lm to libs for non-Darwin fmodl

* Allow negative integer constants in the syntax

* Remove double case on Function in clone

Co-authored-by: Ian Piumarta <piumarta@nas.local>
Co-authored-by: Ian Piumarta <piumarta@gmail.com>