feat(libs): Add ESP-NOW Arduino library

Author: P-R-O-C-H-Y

Diff for: CMakeLists.txt

@@ -83,6 +83,7 @@ set(ARDUINO_ALL_LIBRARIES
   DNSServer
   EEPROM
   ESP_I2S
+  ESP_NOW
   ESP_SR
   ESPmDNS
   Ethernet
@@ -126,6 +127,10 @@ set(ARDUINO_LIBRARY_DNSServer_SRCS libraries/DNSServer/src/DNSServer.cpp)
 set(ARDUINO_LIBRARY_EEPROM_SRCS libraries/EEPROM/src/EEPROM.cpp)
 
 set(ARDUINO_LIBRARY_ESP_I2S_SRCS libraries/ESP_I2S/src/ESP_I2S.cpp)
+
+set(ARDUINO_LIBRARY_ESP_NOW_SRCS 
+  libraries/ESP_NOW/src/ESP32_NOW.cpp
+  libraries/ESP_NOW/src/ESP32_NOW_Serial.cpp)
 
 set(ARDUINO_LIBRARY_ESP_SR_SRCS 
   libraries/ESP_SR/src/ESP_SR.cpp

Diff for: libraries/ESP_NOW/library.properties

@@ -0,0 +1,9 @@
+name=ESP_NOW
+version=1.0.0
+author=me-no-dev
+maintainer=P-R-O-C-H-Y
+sentence=Library for ESP_NOW
+paragraph=Supports ESP32 Arduino platforms.
+category=Sensor
+url=https://github.com/espressif/arduino-esp32/
+architectures=esp32