Merge esp_flasher from https://github.com/0xchocolate/flipperzero-esp-flasher

# Conflicts:
#	esp_flasher/application.fam
#	esp_flasher/esp_flasher_uart.h

esp_flasher/application.fam

@@ -1,7 +1,7 @@
 App(
     appid="esp_flasher",
     name="[ESP] ESP Flasher",
-    fap_version=(1, 4),
+    fap_version=(1, 5),
     apptype=FlipperAppType.EXTERNAL,
     entry_point="esp_flasher_app",
     requires=["gui"],

esp_flasher/docs/changelog.md

@@ -1,3 +1,10 @@
+## v1.5
+
+Fixes app to build with the new API. Thanks @Willy-JL for doing the hard part!
+
+<3 @0xchocolate (cococode)
+
+
 ## v1.4
 
 Turbo mode (gotta go fast)! The app now supports flashing as fast as possible (921600 baud with built-in retries). In my testing, this sped up a 1:37min flash to 23 seconds. Now we can't go back to the slow way!