C/C++ configuration for AVR boards in VS Code

avr-gcc-cpp-configuration.json

{
    "name": "atmega328p",
    "includePath": [
        "${workspaceFolder}/**"
    ],
    "defines": [
		"__AVR_ATmega328P__"
    ],
    "compilerPath": "{path-to-avr-gcc}/avr-gcc",
    "cStandard": "c99",
    "cppStandard": "c++17",
    "intelliSenseMode": "gcc-x86"
}