Add some CFNSURLConnection stuff

This is a stub for a class and a declaration for some private NSURL stuff

I gotta say, Apple really has a jumble of CF and NS stuff

include/CFNetwork/CFNSURLConnection.h

@@ -0,0 +1,24 @@
+#ifndef _CFNSURLCONNECTION_H_
+#define _CFNSURLCONNECTION_H_
+
+// not sure what's going on here
+// `SecCAIssuerRequest.m` imports this file
+// let's just include the main header for now
+#include <CFNetwork/CFNetwork.h>
+
+#import <Foundation/Foundation.h>
+
+@interface NSURLSessionTaskMetrics : NSObject
+
+@property (readonly, copy) NSDateInterval* taskInterval;
+
+@end
+
+@interface NSURLSessionConfiguration (CFNSPrivateStuff)
+
+@property (readwrite) NSData* _sourceApplicationAuditTokenData;
+@property (readwrite) BOOL _requiresPowerPluggedIn;
+
+@end
+
+#endif // _CFNSURLCONNECTION_H_

src/CMakeLists.txt

@@ -43,6 +43,7 @@ set(cfnetwork_sources
 	URL/_CFURLAccess.c
 	URL/CFURLAuthChallenge.c
 	URL/CFURLRequest.c
+	URL/CFNSURLConnection.m
 	HTTP/CFHTTPServer.c
 	HTTP/CFHTTPMessage.c
 	HTTP/CFHTTPStream.c

src/URL/CFNSURLConnection.m

@@ -0,0 +1,14 @@
+#import <CFNetwork/CFNSURLConnection.h>
+
+@implementation NSURLSessionTaskMetrics
+
+- (NSMethodSignature *)methodSignatureForSelector:(SEL)aSelector {
+	return [NSMethodSignature signatureWithObjCTypes: "v@:"];
+}
+
+- (void)forwardInvocation:(NSInvocation *)anInvocation {
+	// would require Foundation
+	//NSLog(@"Stub called: %@ in %@", NSStringFromSelector([anInvocation selector]), [self class]);
+}
+
+@end