Add support for building with platformio

platformio.ini

@@ -0,0 +1,30 @@
+[platformio]
+src_dir = marquee
+lib_dir = marquee/libs
+src_filter = -libs
+default_envs = nodemcuv2
+
+; in case that Linux cannot detect port automatically - uncomment line below.
+; upload_port = /dev/ttyUSB*
+
+[env:wemos]
+framework = arduino
+platform = espressif8266
+board = d1_mini
+
+[env:nodemcuv2]
+framework = arduino
+platform = espressif8266
+board = nodemcuv2
+
+lib_deps =
+    [email protected]
+    [email protected]
+    Adafruit GFX [email protected]
+    markruys/arduino-Max72xxPanel#9a14fba
+    squix78/json-streaming-parser#ddb90a2
+    [email protected]
+    [email protected]
+
+; !!!!!!!!!!!! Warning - if you are getting exceptions with permission error on windows - 
+; most likely you've put you project in folder where path is too long. Try moving it to root of your drive.