* [DOCS] Create a new page for dissect in scripting docs
* Expanding a bit more
* Adding a section for using dissect patterns
* Adding tests
* Fix test cases and other edits
* [DOCS] Moving grok to its own scripting page
* Adding examples
* Updating cross link for grok page
* Adds same runtime field in a search request for #73262
* Clarify titles and shift navigation
* Incorporating review feedback
* Updating cross-link to Painless
* [DOCS] Add field extraction use cases to scripting docs
* Adding file
* Remove extra space
* Add dissect pattern to split and retrieve data
* Fix list spacing
* Incorporating review feedback