Support for LibreTiny platform (RTL8710, BK7231 & other modules) (#3509)

Co-authored-by: Kuba Szczodrzyński <kuba@szczodrzynski.pl>
Co-authored-by: Sam Neirinck <git@samneirinck.com>
Co-authored-by: David Buezas <dbuezas@users.noreply.github.com>
Co-authored-by: Stroe Andrei Catalin <catalin2402@gmail.com>
Co-authored-by: Sam Neirinck <github@samneirinck.be>
Co-authored-by: Péter Sárközi <xmisterhu@gmail.com>
Co-authored-by: Hajo Noerenberg <hn@users.noreply.github.com>

script/ci-custom.py

@@ -512,7 +512,10 @@ def relative_py_search_text(fname, content):
 @lint_content_find_check(
     relative_py_search_text,
     include=["esphome/components/*.py"],
-    exclude=["esphome/components/web_server/__init__.py"],
+    exclude=[
+        "esphome/components/libretiny/generate_components.py",
+        "esphome/components/web_server/__init__.py",
+    ],
 )
 def lint_relative_py_import(fname):
     return (
@@ -536,6 +539,7 @@ def lint_relative_py_import(fname):
         "esphome/components/esp32/core.cpp",
         "esphome/components/esp8266/core.cpp",
         "esphome/components/rp2040/core.cpp",
+        "esphome/components/libretiny/core.cpp",
         "esphome/components/host/core.cpp",
     ],
 )