Implement Zot assembler

* define-macro
* define-combinator
* define-syntax-rule
* define-syntax
* https://justinethier.github.io/husk-scheme//2012/12/10/Understanding-Macros.html
* https://3e8.org/pub/pdf-t1/macros_that_work.pdf
* http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.53.5184
* http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.53.5184&rep=rep1&type=pdf


