Currently, the `admin_config` configuration was
hardcoded in the templates, but as a goal of creating
a common template, we need to move all configurations
outside.
Moved the checking for function and language which need
admin_config out of templates into the code and added a
boolean `x-admin-config` to store whehter the operation
requires admin config.
Also, added the banner for admin access to auto-generate
if admin_config is present, and fixed the admin_config
for endpoints that were earlier missing it in the templates.
1acee9f516