[zsh] Move func/ directory to zsh/functions

zsh/functions/init_rc_fpath_darwin

@@ -0,0 +1,18 @@
+# Eryn Wells <eryn@erynwells.me>
+
+autoload binary_exists
+autoload homebrew-prefix
+
+function init_rc_fpath_darwin
+{
+    if binary_exists brew; then
+        local brew_fpath="$(homebrew-prefix)/share/zsh/site-functions"
+        if [[ -d "$brew_fpath" ]]; then
+            fpath+=($brew_fpath)
+        fi
+
+        export FPATH
+    fi
+}
+
+init_rc_fpath_darwin "$@"