Rebuilt Upload TFT

Rebuilt again, now based on the ESPHome's Nextion component instead of local code.
Still not there yet, specially when Lovelace UI tft is installed, but hopefully this solves #1383 and solves #1491.

dev/instructions_for_developers.md

@@ -1,5 +1,24 @@
 # ESPHome
 
+### Logging
+Avoid excessive log, or at least avoid excessive log at DEBUG level, but if you look around this project, many of the functionalities will log like this:
+
+```yaml
+sensor:
+  - id: my_sensor
+    ...
+    on_change:
+      - lambda: |-
+          static const char *const TAG = "sensor.my_sensor";
+          ESP_LOGD(TAG, "New value: %f", x);  // No need to log this, use only when needed
+          if (id(is_uploading_tft)) {
+            ESP_LOGD(TAG, "Skipping any action as a TFT upload is in progress");  // No need to log this, use only when needed
+          } else {
+            // Your code here
+          }
+```
+
+### Page opened
 When a new page is opened, a script name `page_changed` (whith a parameter `page` containing a string with the page name) is called and that one will call a page specific script named `page_<page_name>`. In addition, pages with multiple pages (entitypageXX, buttonpageXX and weatherXX) will also call a generic page named `page_entitypage`, `page_buttonpage` or `page_weather` with a parameter `page_number` containing the number of the page called.
 
 If you want to execute expecific code when a page is opened, you can extend the functionality of that specific page:
@@ -21,4 +40,49 @@ script:
 - id: !extend page_buttonpage02
     then:
       # Code to run when buttonpage02 is opened
+```
+
+#### Managing conflicts with Upload TFT
+The TFT upload is the most resource conmsuming task in this project and should have all the resources available, so when creating something, please take in account:
+
+#### Stop your scripts before the upload starts
+If you create a new script that should be stopped previous a Upload TFT starts, please add your script to the `stop_all` script like this:
+
+```yaml
+script:
+  - id: !extend stop_all
+    then:
+      - script.stop: my_new_script_id
+```
+
+#### Check for upload status before starting any action
+There is a global `is_uploading_tft` which will be true when the upload TFT process starts, so you can use this in your code like this:
+
+```yaml
+sensor:
+  - id: my_sensor
+    ...
+    on_change:
+      - if:
+          condition:
+            - lambda: !lambda return (!id(is_uploading_tft))
+          then:
+            # your code here
+```
+
+or:
+
+```yaml
+sensor:
+  - id: my_sensor
+    ...
+    on_change:
+      - lambda: |-
+          static const char *const TAG = "sensor.my_sensor";
+          ESP_LOGD(TAG, "New value: %f", x);  // No need to log this, use only when needed
+          if (id(is_uploading_tft)) {
+            ESP_LOGD(TAG, "Skipping any action as a TFT upload is in progress");  // No need to log this, use only when needed
+          } else {
+            // Your code here
+          }
 ```