* VAULT-2285 adding capability to accept comma separated entries for auth enable/tune

* Adding changelog

* Adding logic to detect invalid input parameter for auth enable config

* Updating tune.mdx

* Updating secret enable/tune for comma separated parameters

* Adding further parameter checks for auth/secret tests
Fixing changelog
using builtin type for a switch statement
Fixing a possible panic scenario

* Changing a function name, using deep.Equal instead of what reflect package provides

* Fixing auth/secret enable/tune mdx files

* One more mdx file fix

* Only when users provide a single comma separated string in a curl command, split the entries by commas

* Fixing API docs for auth/mount enable/tune for comma separated entries

* updating docs, removing an unnecessary switch case