Add pty support for OpenBSD

Index: Ghidra/Framework/Pty/src/main/java/ghidra/pty/openbsd/OpenBSDPtySessionLeader.java
--- Ghidra/Framework/Pty/src/main/java/ghidra/pty/openbsd/OpenBSDPtySessionLeader.java.orig
+++ Ghidra/Framework/Pty/src/main/java/ghidra/pty/openbsd/OpenBSDPtySessionLeader.java
@@ -13,21 +13,21 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package ghidra.pty.linux;
+package ghidra.pty.openbsd;
 
 import ghidra.pty.unix.PosixC.Ioctls;
 import ghidra.pty.unix.UnixPtySessionLeader;
 
-public class LinuxPtySessionLeader extends UnixPtySessionLeader {
+public class OpenBSDPtySessionLeader extends UnixPtySessionLeader {
 
 	public static void main(String[] args) throws Exception {
-		LinuxPtySessionLeader leader = new LinuxPtySessionLeader();
+		OpenBSDPtySessionLeader leader = new OpenBSDPtySessionLeader();
 		leader.parseArgs(args);
 		leader.run();
 	}
 
 	@Override
 	protected Ioctls ioctls() {
-		return LinuxIoctls.INSTANCE;
+		return OpenBSDIoctls.INSTANCE;
 	}
 }
