feat: [Interval] add overlaps() method

Found to be useful when writing tests

pipeline/utils.py

@@ -217,6 +217,18 @@ class Interval():
             self.duration = new_duration
         self.end = self.start + self.duration
 
+    def overlaps(self, other):
+        """Check if this interval overlaps (or touches) with another interval
+
+        This is the case if:
+         - this.start <= other.end <= this.end
+         - this.start <= other.start <= this.end
+         - other.start <= this.end <= other.end
+         - other.start <= this.start <= other.end
+        """
+        return (self.start <= other.end <= self.end) or (self.start <= other.start <= self.end) or \
+                (other.start <= self.end <= other.end) or (other.start <= self.start <= other.end)
+
 class Feature():
     """A feature extracted from a media file ("has a" Interval)