Add another test case for track length

Author: emurray2

Tests/AudioKitEXTests/SequencerTrackTests.swift

@@ -138,6 +138,10 @@ class SequencerTrackTests: XCTestCase {
 
         XCTAssertEqual(track.length, 4.01, "Track length should be extended with note event position + duration greater or equal to existing track length")
 
+        track.add(noteNumber: 60, position: 1.0, duration: 5.0)
+
+        XCTAssertEqual(track.length, 6.01, "Track length should be extended with note event position + duration greater or equal to existing track length")
+
         track.playFromStart()
         XCTAssertTrue(track.isPlaying)
         let audio = engine.startTest(totalDuration: 5.0)

Tests/AudioKitEXTests/ValidatedMD5s.swift

@@ -21,7 +21,7 @@ let validatedMD5s: [String: String] = [
     "-[SequencerTrackTests testLoop]": "3a7ebced69ddc6669932f4ee48dabe2b",
     "-[SequencerTrackTests testOneShot]": "3fbf53f1139a831b3e1a284140c8a53c",
     "-[SequencerTrackTests testTempo]": "1eb7efc6ea54eafbe616dfa8e1a3ef36",
-    "-[SequencerTrackTests testNoteBounds]": "6679c7b949d28130549c6a1eb4ceaf59",
+    "-[SequencerTrackTests testNoteBounds]": "f3b3935e30380367c15652c0a76a8a57",
     "-[DryWetMixerTests testBalance0]": "789c1e77803a4f9d10063eb60ca03cea",
     "-[DryWetMixerTests testBalance1]": "3932bc5d49cbefd4a9dd587d16f4b81c",
     "-[DryWetMixerTests testDefault]": "45a639729d8698a28f134bbe4ccc9d6c",