Major optimization refactor, across the board

+ enable lexical-scope everywhere (lexical-binding = t): ~5-10% faster
  startup; ~5-20% general boost
+ reduce consing, function calls & garbage collection by preferring
  cl-loop & dolist over lambda closures (for mapc[ar], add-hook, and
  various cl-lib filter/map/reduce functions) -- where possible
+ prefer functions with dedicated opcodes, like assq (see byte-defop's
  in bytecomp.el for more)
+ prefer pcase & cond (faster) over cl-case
+ general refactor for code readability
+ ensure naming & style conventions are adhered to
+ appease byte-compiler by marking unused variables with underscore
+ defer minor mode activation to after-init, emacs-startup or
  window-setup hooks; a customization opportunity for users + ensures
  custom functionality won't interfere with startup.

modules/feature/evil/autoload/folds.el

@@ -1,9 +1,9 @@
-;;; feature/evil/autoload/folds.el
+;;; feature/evil/autoload/folds.el -*- lexical-binding: t; -*-
 
-;; It's frustrating how hideshow is a decent code folding implementation, but it
-;; won't let you create custom folds. Meanwhile, evil-vimish-fold offers custom
-;; folds, but essentially ignores any other type of folding (indent or custom
-;; markers, which hs-minor-mode gives you).
+;; `hideshow' is a decent code folding implementation, but it won't let you
+;; create custom folds. `evil-vimish-fold' offers custom folds, but essentially
+;; ignores any other type of folding (indent or custom markers, which
+;; hs-minor-mode gives you).
 ;;
 ;; So this is my effort to combine them.