Create default client for admin auth

[alexchiraples]

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Migrated from https://github.com/gov-ithub/auth-sso/issues/92 Originally created by @alexchiraples on Tue, 03 Jan 2017 18:30:10 GMT

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• [x] The values for the admin panel should be stored in configuration file
• [x] Replace MVC client with "Admin Panel Auth SSO"
• [x] Generate new secret key