MSVC more standards conformance

[Oipo]

The /Zc flag has a couple of conformance related changes that are not enabled by default, the /permissive- flag or the /std:c++17 and /std:c++20 flags.

As far as I understand the documentation, these include:

• /Zc:throwingNew
• /Zc:__cplusplus
• /Zc:preprocessor
• /Zc:inline
• /Zc:referenceBinding
• /Zc:strictStrings
• /Zc:templateScope

There are also two non-/Zc flags that I am aware of, that have an impact on conformance:

• /await:strict
• /volatile:iso

If interested, I could create a PR?