Import ESP_UniClock (upstream 1189810)

Vendored from https://github.com/gpeter62/ESP_UniClock: the sketch
source, the web UI and the libraries the ESP8266 build needs, unpacked
from the bundled zips. Adds a PlatformIO project for the ESP-12. The
source is unchanged; local changes follow as separate commits.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

firmware/uniclock/lib/arduino-home-assistant-main/src/ArduinoHADefines.h

@@ -0,0 +1,23 @@
+// Turns on debug information of the ArduinoHA core.
+// Please note that you need to initialize serial interface manually
+// by calling Serial.begin([baudRate]) before initializing ArduinoHA.
+// #define ARDUINOHA_DEBUG
+
+// You can reduce Flash size of the compiled library by commenting unused components below
+#define ARDUINOHA_BINARY_SENSOR
+#define ARDUINOHA_COVER
+#define ARDUINOHA_FAN
+#define ARDUINOHA_HVAC
+#define ARDUINOHA_SENSOR
+#define ARDUINOHA_SWITCH
+#define ARDUINOHA_TAG_SCANNER
+#define ARDUINOHA_TRIGGERS
+
+#ifdef __GNUC__
+#define AHA_DEPRECATED(func) func __attribute__ ((deprecated))
+#elif defined(_MSC_VER)
+#define AHA_DEPRECATED(func) __declspec(deprecated) func
+#else
+#warning "Arduino Home Assistant: You may miss deprecation warnings."
+#define AHA_DEPRECATED(func) func
+#endif