Move dev caching settings to settings.local.php and services.local.yml

[becw]

Move dev caching settings to settings.local.php and services.local.yml to make them easier to turn on and off.

On wisdhs-workweb, we found it difficult to test caching locally because we had to dig around for the appropriate settings to mess with to have local be configured like prod. This moves those settings into local specific config files, so that devs can enable/disable easily.

[byrond]

So, with this we are switching local dev caching on by default (if the developer chooses to switch it on in the Drupal UI). I'm wondering if the Disable caching. lines should be commented out at the start, so there isn't a change in functionality (or expected behavior) just by copying the .local files. Same question with the aggregation setting lines.

Also, this divides local settings into two different files when using DDEV. Should we consider moving the error level and test module setting lines to settings.local.php, so they can all be found in one place?

[becw]

Also, this divides local settings into two different files when using DDEV. Should we consider moving the error level and test module setting lines to settings.local.php, so they can all be found in one place?

The reason I did this is because IMO some development settings should be shared between all development environments -- specifically, the error level. I want it to be a pain in the butt for us to turn off error reporting on our local environments! There are too many times when I've seen folks working with error reporting turned off because it's off by default, leading to PHP warnings and deprecation notices that are easy to fix now, and hard to fix later.

Is that too paternalistic? :)