Set Visual Studio Intellisense C++ Version

Hi, thanks for chiming in. Here’s my platformio.ini:

; PlatformIO Project Configuration File

;

;   Build options: build flags, source filter

;   Upload options: custom upload port, speed and extra flags

;   Library options: dependencies, extra library storages

;   Advanced options: extra scripting

;

; Please visit documentation for the other options and examples

; https://docs.platformio.org/page/projectconf.html

[env:nodemcuv2]

platform = espressif8266

board = nodemcuv2

framework = arduino

lib_deps = arkhipenko/TaskScheduler@^3.4.0

build_flags = -std=c++17

build_unflags = -std=c++11

[platformio]