Enable Encryption by default + introduce HostNameInCertificate

[cheenamalhotra]

Bringing in Microsoft.Data.SqlClient 5.0.1 dependency with STS 4.4.0.7

• Sets Encrypt to Mandatory by default.

• Adds support for HostNameInCertificate SqlConnection property.

• Adds welcome note for encryption behavior change (Updated)
  
  More information redirects to: https://aka.ms/vscodemssql-connection (placeholder link for blogpost)

• Enables setting Trust Server Certificate to true with prompt for cert validation failure.
  
  Read more redirects to: https://aka.ms/vscodemssql-connection (placeholder link for blogpost)

Demo

Captures double failure scenario as well

[dzsquared]

I'd prefer both the dialogs link to our aka.ms link where we will have specific documentation on VS Code connectivity. From there, we can link to more information specifically on configuring SQL Server certificates but folks will also see info on the settings file and encryption options.

[erinstellato-ms]

I agree with Drew's comment - everything else looks great.

[Charles-Gagnon]

Apologies for the large amount of nit comments - I mostly left them here to point out the different types of cleanup to be on the lookout for when you're working in this repo (most of the newer styles such as async/await weren't in use when this stuff was originally made). I'll tone it down in future PRs - and feel free to just mark those as follow up items if you want.

There are a couple of actual issues/comments to look at too though.

[cheenamalhotra]

Apologies for the large amount of nit comments - I mostly left them here to point out the different types of cleanup to be on the lookout for when you're working in this repo (most of the newer styles such as async/await weren't in use when this stuff was originally made). I'll tone it down in future PRs - and feel free to just mark those as follow up items if you want.

There are a couple of actual issues/comments to look at too though.

I agree there's a lot of improvement scope in this repository, will address things that are in scope of the PR here.

[Charles-Gagnon]

ConnectionUI has an issue you should resolve, and there's some other stuff you should look at too.

Addressed all feedback