Fix Xcode 12 errors

[flemingm]

ORSSerialPort.h one extra { add in last commit in - (instancetype)initWithDevice:(io_object_t)device; Line #163

Explained: ORSSerial/ORSSerialPacketDescriptor.h file not found in issue #169

defined the following in ORSSerialPort.h

// defined missing interface to fix XCODE 12.3 errors.

• (io_object_t) deviceFromBSDPath:(NSString *)bsdPath;

• (NSString *) bsdCalloutPathFromDevice:(io_object_t)aDevice;

• (NSString *) modemNameFromDevice:(io_object_t)aDevice; /**

  • ORSSerialPort must be init'd using -initWithPath: */

• (instancetype) init;

• (void) reallyClosePort;

• (void) notifyDelegateOfPosixError;

• (void) notifyDelegateOfPosixErrorWaitingUntilDone:(BOOL)shouldWait;

• (void) setPortOptions;

• (void) updateModemLines;

• (void) receiveData:(NSData *)data;

[armadsen]

Thanks for this. Not using the framework is no longer officially supported, because it's complicated to correctly include framework headers from other framework headers while also supporting non-framework usage. I have fixed the build failure due to the extra brace on master. I'm going to close this, but I appreciate your contribution.