Create socrata_sample submodule for testing against data.seattle.gov or others

I'm closing this as no one has reproduced the issue.

Server returned error code 404 for https://data.seattle.gov/resource/38vd-gytv.json?%24limit=1

Can this be removed from the main module and possibly placed in socrata_demo sub module. this is still creating issues.

html/modules/contrib/socrata/config/install/socrata.endpoint.sample.yml:url: 'https://data.seattle.gov/resource/38vd-gytv.json'
html/modules/contrib/socrata/src/Form/EndpointForm.php: '#description' => $this->t("URL of the dataset endpoint (e.g., https://data.seattle.gov/resource/tqh5-8vm2.json)."),
html/modules/contrib/socrata/tests/config/data.yml: url: https://data.seattle.gov/resource/rn6u-vkuv.json
html/modules/contrib/socrata/tests/config/data.yml: url: https://data.seattle.gov/resource/invalid-resource.json

sorry for the late response btw.

Moving the example endpoint to a sub-module is a good idea. Because I don't use this module anymore, I welcome a merge request to make this happen.

I got this error when using the module:
WSOD on install because of 404 from data.seattle.gov

It was suggested that the tests be moved to a submodule.

I called it socrata_sample