* DIT-942: Basic outline of using HMACv2 for D7

* DIT-942: Use HMACv2 for D7 without third party

* DIT-942: Fix composer.json

* DIT-942 sneak fix for enable logic

* DIT-942 few fixes since no guzzle

* DIT-942 improve static cache check, add missing `headers` to hmac

* DIT-942 Fix cache functions, reformat core array shape, fix url encoding so HMACv2 passes

* DIT-942: Moved PHPDOC to interface

* DIT-942 fix phpcs

* DIT-942: Fixed code sniffer errors

* DIT-942 fix lock_acquire check

* DIT-942: Addes a fix for ApacheSolr derived keys

* DIT-942: We do not need to retrieve cores as we only need to have core id

* Fix get url missing array key.

* Ensure Search API sets a default port.

* Try to better load all of our classes.

Co-authored-by: Matt Glaman <matt.glaman@acquia.com>
Co-authored-by: Jakob Perry <japerry007@gmail.com>