fix equilibrium indicatot in prototype script

Python_script/example_sweeps.txt

-35.0 40.0 1 10
+26.0 38 3 10

Python_script/prototype.py

@@ -172,10 +172,10 @@ class Measurements:
     def equi_indicator(self):
         equilibrium_indicator = 0
 
-        if self.chamber.is_temperature_reached:
+        if self.chamber.is_temperature_reached():
             equilibrium_indicator = equilibrium_indicator | TEMPERATURE_STABLE
 
-        if self.chamber.is_humidity_reached:
+        if self.chamber.is_humidity_reached():
             equilibrium_indicator = equilibrium_indicator | HUMIDITY_STABLE
         #FIXME
         #if magnitude stable: