Azure Service Bus .NET Standard samples

Adding links to external samples (#221)

Linking .Net Std Readme.md to 
- MSI authentication
- Performance sample

Azure Service Bus - Basic Send/Receieve with Filters in .NET

4913

🚀 Adding sample manifests

Azure Service Bus .NET Standard samples

4912

🚀 Adding sample manifests

Azure Service Bus - Basic Send/Receieve in .NET

4911

🚀 Adding sample manifests

Service Bus Premium Messaging .NET Performance Test

4910

🚀 Adding sample manifests

Azure Service Bus .NET Standard samples

4905

🚀 Adding sample manifests

Service Bus Premium Messaging .NET Performance Test

4904

🚀 Adding sample manifests

Azure Service Bus - Basic Send/Receieve in .NET

4903

🚀 Adding sample manifests

Azure Service Bus - Basic Send/Receieve with Filters in .NET

4902

🚀 Adding sample manifests