quantile filter support (#2900)

Co-authored-by: Oxan van Leeuwen <oxan@oxanvanleeuwen.nl>
Co-authored-by: pvranik <petr.vranik@mgm-tp.com>

tests/test3.yaml

@@ -358,6 +358,11 @@ sensor:
       - filter_out: NAN
       - sliding_window_moving_average:
       - exponential_moving_average:
+      - quantile:
+          window_size: 5
+          send_every: 5
+          send_first_at: 3
+          quantile: .8
       - lambda: 'return 0;'
       - delta: 100
       - throttle: 100ms