Security header for Blazor

[GFlisch]

Integrate the security http study in the code generated.

[rdarko]

• [ ] devops has to remove server header on the iis (DEVOPS)
• [ ] choose hosting strategy for blazor: static files, kestrel on iis, nt service and kubernetes (A meeting is needed to decide if this is relevant)
• [ ] define the headers that have to be edited, to be removed and edit the content of the headers depending of the strategy
• [ ] implement the guidance
• [ ] depending on the strategy, devops has to be adapted
• [ ] test if headers re-appeared on iis
• [ ] test the deployment of the service, of the blazor applications. (DEVOPS + ARCHITECTS)
• [ ] check if the piplines has to be adjusted (DEVOPS + ARCHITECTS)
• [ ] Define how to measure the speed to download a blazor project