message: Use C++17
  Summary:
  Dependencies started using C++17 so it's required by now and it seems there is some ABI breakage with fizz.
  Pull Request resolved:
diff: cmake_minimum_required(VERSION 3.10)
  -project(
  - mvfst
  -)
  +project(mvfst)
  +
  +set(CMAKE_CXX_STANDARD 17)
  +set(CMAKE_CXX_STANDARD_REQUIRED ON)
  +set(CMAKE_CXX_EXTENSIONS OFF)
  +
  set(CMAKE_MODULE_PATH
  "${CMAKE_CURRENT_SOURCE_DIR}/cmake"
  # for in-fbsource builds
  @@ -76,11 +79,6 @@ else()
  list(APPEND CMAKE_REQUIRED_INCLUDES ${LIBGFLAGS_INCLUDE_DIR})
  endif()
  -list(APPEND
  - _QUIC_BASE_COMPILE_OPTIONS
  - -std=c++14
  -)
  -
  if(NOT CMAKE_SYSTEM_NAME STREQUAL "Windows")
  list(APPEND
  _QUIC_BASE_COMPILE_OPTIONS
  