Fix primary port binding issue in 1.12 (#2107)

* Add test for primary port bindings to validator - See #2105

* Add delay to binding test

* Remove TCP binding logic from Binder to fix #2105

* add second control plane socket for ipv6

* fix controller network post endpoint

* exit if we can't bind at least one of IPV4 or IPV6 for control plane port

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Co-authored-by: Grant Limberg <grant.limberg@zerotier.com>

controller/EmbeddedNetworkController.hpp

@@ -70,6 +70,7 @@ public:
 
 	void configureHTTPControlPlane(
 		httplib::Server &s,
+		httplib::Server &sV6,
 		const std::function<void(const httplib::Request&, httplib::Response&, std::string)>);
 
 	void handleRemoteTrace(const ZT_RemoteTrace &rt);