[Storage][DataLake] Add additional constructors

[seanmcc-msft]

https://apiview.azurewebsites.net/Assemblies/Review/548418d761fb45ce9fc98c8cfa9f5ef8

• DataLakeServiceClient
  • Make DataLakeClientOptions not optional on all constructors where it is present
  • Add constructor taking just Uri
  • Add constructor taking Uri and SharedKeyCredential
  • Add constructor taking Uri and Token Credential
• PathClient
  • Make DataLakeClientOptions not optional on all constructors where it is present
  • Add constructor taking just Uri
  • Add constructor taking Uri and SharedKeyCredential
  • Add constructor taking Uri and Token Credential
  • Add constructor taking Uri, TokenCredential, and DataLakeClientOptions
• DirectoryClient
  • Make DataLakeClientOptions not optional on all constructors where it is present
  • Add constructor taking just Uri
  • Add constructor taking Uri and SharedKeyCredential
  • Add constructor taking Uri and Token Credential
  • Add constructor taking Uri, TokenCredential, and DataLakeClientOptions
• FileClient
  • Make DataLakeClientOptions not optional on all constructors where it is present
  • Add constructor taking just Uri
  • Add constructor taking Uri and SharedKeyCredential
  • Add constructor taking Uri and Token Credential
  • Add constructor taking Uri, TokenCredential, and DataLakeClientOptions