Client & Central Controller updates to support additonal OIDC features (#1848)

Client side:
* Fix compatibility with OneLogin
* Requested scopes vary by OIDC provider. Different providers have different

Controller side:
*Update Postgres queries to latest Central schema
* Added Central Controller support for the different providers
* Base OIDC provider details are still attached to an org. Client ID & group/email lists are now associated with individual networks.

controller/DB.hpp

@@ -53,6 +53,7 @@ public:
 	, ssoNonce()
 	, ssoState()
 	, ssoClientID()
+	, ssoProvider("default")
 	{}
 
 	bool enabled;
@@ -64,6 +65,7 @@ public:
 	std::string ssoNonce;
 	std::string ssoState;
 	std::string ssoClientID;
+	std::string ssoProvider;
 };
 
 /**