Added Slisp and basic logging

[jwMaxwell]

Related bugs/feature requests

• Logs file saves rather than chucking them in the console

Describe the changes

Added Slisp, the new and improved Spike-lisp

Expected behavior

Screenshots

New npm dependencies

Testing Instructions Logging: Send a bunch of messages and make sure they go to the log file

Slisp: try these commands*; $slisp

```lisp
(print (cons 'a '(b c d e)))

$slisp

(print (+ 1 2 3 4 5))

$slisp

(defun null? (x) (eq x '())) (null? '())

**Additional context**
<!-- Add any other context about the PR here. -->
Sorry for multiple changes in a single push. Not the best practice but whatever.

[brandoningli]

Related to #19

[brandoningli]

Work being done in #59 and a subsequent PR for logging. Closing.