Azpn/bosquet/visual studio warning

Type of change

• Bug Fix
• Feature

Does this introduce a change in the core logic?

• [no]

Does this introduce a change in the cloud provider implementation, if so which cloud?

• AWS
• Azure
• GCP
• IBM

Updates description?

Some cmake files cleanup to properly build the OpenETPServer natively on Windows with Visual Studio compile.

Increase the level of compiler warning to W4 on windows

Fix several high level warning reported by Visual Studio