Change note's duration type from int to Fraction and enable + operator support for note and int

modules/lang/src/main/kotlin/io/smnp/ext/lang/constructor/NoteConstructor.kt

@@ -5,6 +5,7 @@ import io.smnp.callable.function.FunctionDefinitionTool
 import io.smnp.callable.signature.Signature.Companion.simple
 import io.smnp.data.entity.Note
 import io.smnp.data.enumeration.Pitch
+import io.smnp.math.Fraction
 import io.smnp.type.enumeration.DataType.*
 import io.smnp.type.matcher.Matcher.Companion.ofType
 import io.smnp.type.model.Value
@@ -18,7 +19,7 @@ class NoteConstructor : Function("Note") {
          ofType(BOOL)
       ) body { _, (pitchString, octave, duration, dot) ->
          val pitch = Pitch.parse((pitchString.value as String).toLowerCase())
-         val note = Note(pitch, octave.value as Int, duration.value as Int, dot.value as Boolean)
+         val note = Note(pitch, octave.value as Int, Fraction(1, duration.value as Int), dot.value as Boolean)
          Value.note(note)
       }
    }