Memory optimization & external components

Helps with #1686
- This is deprecating Relay local fallback switches (replaced by globals) to save memory.
- Using reboot timeout from ESPHome instead of custom engine
- Do not change page is already there.
- Use of external components to streamline some repetitive code
- API always transfer colors in RGB array to keep consistency

esphome/nspanel_esphome_advanced.yaml

@@ -7,6 +7,13 @@
 ##### ATTENTION: This will add advanced elements to the core system and requires the core part. #####
 #####################################################################################################
 ---
+substitutions:
+  ##############################
+  ## Change only in your      ##
+  ## local yaml substitutions ##
+  web_password: ${wifi_password}
+  ##############################
+
 button:
   - name: Exit reparse
     platform: template
@@ -19,6 +26,8 @@ button:
       - logger.log: "Button pressed: Exit reparse"
       - script.execute: exit_reparse
 
+captive_portal:
+
 script:
   - id: exit_reparse
     mode: restart
@@ -85,4 +94,12 @@ time:
       then:
         - component.update: api_timestamp
         - component.update: device_timestamp
+
+##### Web server #####
+web_server:
+  id: web_server_std
+  port: 80
+  auth:
+    username: admin
+    password: ${web_password}
 ...