Kalman filter added, better distance calculation, m5stickC support added

.editorconfig

@@ -0,0 +1,8 @@
+[*]
+end_of_line = lf
+insert_final_newline = true
+
+# 4 spaces indentation
+[*.ino]
+indent_style = space
+indent_size = 4

platformio.ini

@@ -6,16 +6,19 @@
 ;   Advanced options: extra scripting
 ;
 ; Please visit documentation for the other options and examples
-; http://docs.platformio.org/page/projectconf.html
-
-[platformio]
-src_dir = ./src
+; https://docs.platformio.org/page/projectconf.html
 
 [env:esp32]
 platform = espressif32
 framework = arduino
 board = m5stick-c
-lib_deps = ArduinoJson@^6, NimBLE-Arduino, AsyncMqttClient@^0.8.2, AsyncTCP
+lib_deps = 
+	ArduinoJson@^6
+	NimBLE-Arduino
+	AsyncMqttClient@^0.8.2
+	AsyncTCP
+	dwrobel/TrivialKalmanFilter@^1.0.1
+	m5stack/M5StickC@^0.2.0
 lib_ignore = ESPAsyncTCP, ESP32 BLE Arduino
 board_build.partitions = partitions_singleapp.csv
 monitor_speed = 115200