Activate notoptions corruption detection + mitigation by requiring file

[nickdaugherty]

Description

The detection and mitigation code is already committed, now we need to activate it now by requiring the file.

See #1970

Changelog Description

Options: Activate notoptions error detection and mitigation code

Activated the already-deployed code to detect and mitigate problems with the notoptions cache.

Checklist

Please make sure the items below have been covered before requesting a review:

• This change works and has been tested locally (or has an appropriate fallback).
• This change works and has been tested on a Go sandbox.
• n/a This change has relevant unit tests (if applicable).
• n/a This change has relevant documentation additions / updates (if applicable).
• I've created a changelog description that aligns with the provided examples.

Steps to Test

1. Try regular requests with valid notoptions - should see normal behavior
2. Purposefully pollute the notoptions cache with invalid data (via wp shell):

$notoptions = wp_cache_get( 'notoptions', 'options' );
$notoptions['somekey'] = 'anystring';
wp_cache_set( 'notoptions', $notoptions, 'options' );

3. Run a CLI command (to trigger the detection code): wp option get home
4. Check the value of the notoptions cache - the somekey invalid data should be removed - wp cache get notoptions options

[rinatkhaziev]