Add support for all mdast-util-toc options in TypeScript

Closes GH-32.
Closes GH-33.

Reviewed-by: Titus Wormer <tituswormer@gmail.com>
Reviewed-by: Christian Murphy <christian.murphy.42@gmail.com>

Author: babie

types/index.d.ts

@@ -4,7 +4,7 @@ import {Node} from 'unist'
 import {TOCOptions} from 'mdast-util-toc'
 
 declare namespace remarkToc {
-  type TOCSettings = Pick<TOCOptions, 'heading' | 'maxDepth' | 'tight' | 'skip'>
+  type TOCSettings = TOCOptions
 }
 
 /**

types/remark-toc-tests.ts

@@ -21,3 +21,11 @@ remark().use(toc, {
 remark().use(toc, {
   skip: 'skip-heading'
 })
+
+remark().use(toc, {
+  prefix: 'prefix-'
+})
+
+remark().use(toc, {
+  parents: ['root', 'blockquote']
+})