Demo GHAS features (01)

[CalinL]

• Use the gh-advsec-devsecops repository from the workspace
• Create me a new unique branch name under feature/devsecops-demo-[randon-number]
• Create a new DevSecOps-[random-number].cshtml page and reference it into the Index page.
• Add some content to it with some latest news about GitHub Advanced Security.
• Implemented the ILogger for the backend code of the page.
• For demo purpose, generate some C# insecure code, like log forging or regex exposure
• Add package System.Text.Json --version 8.0.4
• Add package Microsoft.Data.SqlClient --version 5.0.2
• Add package newtonsoft.json --version 12.0.2
• Build the webapp to make sure there are not build errors.
• Prepare for committing the changes.