Added intellisense configuration file

.vscode/c_cpp_properties.json

@@ -0,0 +1,22 @@
+{
+    "configurations": [
+        {
+            "name": "Win32",
+            "includePath": [
+				"${workspaceFolder}/**",
+				"${workspaceFolder}/../libraries/SIM808",
+				"${workspaceFolder}/../libraries/uDS3231",
+				"${workspaceFolder}/../libraries/E24",
+				"${workspaceFolder}/../libraries/Low-Power",
+				"${workspaceFolder}/../libraries/ArduinoLog",
+				"${config:arduino.path}/tools/**",
+				"${config:arduino.path}/hardware/arduino/avr/**",
+				"${config:arduino.path}/hardware/tools/avr/avr/include/**"
+            ],
+            "intelliSenseMode": "clang-x64",
+            "cStandard": "c11",
+            "cppStandard": "c++11"
+        }
+    ],
+    "version": 4
+}