More specific Haxe/C++ requirements for MSVC

[tobil4sk]

It would be good to add some more information about MSVC to the "Getting started with Haxe/C++" page:

https://github.com/HaxeFoundation/HaxeManual/blob/master/content/12-target-details.md#system-compilers

The minimum requirements are the Build Tools and VSWhere:

winget install -e --id Microsoft.VisualStudio.2022.BuildTools
winget install -e --id Microsoft.VisualStudio.Locator

Related to: HaxeFoundation/hxcpp#1008