Climate custom preset

Solves #1286

.test/esphome_advanced_climate_heat_customizations.yaml

@@ -71,6 +71,26 @@ button:
             id(timer_sleep).execute(id(wakeup_page_name).state.c_str(), int(id(timeout_sleep).state));
             id(timer_dim).execute(id(wakeup_page_name).state.c_str(), int(id(timeout_dim).state));
 
+# Add custom presets to your climate (heat in this example)
+climate:
+  - id: !extend thermostat_embedded
+    heat_deadband: 0.3
+    heat_overrun: 0.0
+    default_preset: "Home"
+    preset:
+      - name: "Off"
+        default_target_temperature_low: ${temp_min} ${temp_units}
+        mode: "off"
+      - name: Home
+        default_target_temperature_low: 21 ${temp_units}
+        mode: "heat"
+      - name: Away
+        default_target_temperature_low: 16.5 ${temp_units}
+        mode: "heat"
+      - name: Sleep
+        default_target_temperature_low: 17.5 ${temp_units}
+        mode: "heat"
+
 deep_sleep:
   # Define the wake-up button. Use pin 14 for left button or pin 27 for right button
   wakeup_pin: 14