refactor(apex): rearrange class for readability (#29)

refactor(params): simplify parameter usage, moving most to top-level
Of note: moving keyword lists to a separate file prevents the build/test
process

refactor: moved some matchers to named objects for better readability

test: add illegal strings to prevent recognizing as other languages
(clojure, gams, mathematica)

test: update expected markup after removing extra scope words

Author: dschach

Diff for: .gitignore

@@ -114,3 +114,6 @@ typings/
 .pmdCache
 
 demo/scratchpad.*
+
+# temp directory
+temp