fixing logs for add command

[abhishekkumams]

Why make this change?

• Closes Missing configuration file name in printed message #1128
  • Inconsistent logs printing config file for add command.
  • In the below screenshot we can see that we print the config file name and then in the next line we intend to print again config: , but it doesn't print anything when the user doesn't provide it in the options. This is an inconsistent behavior.
    

What is this change?

• config file name is already printed in the previous line that is being used with add/update/start command.
• I updated the inconsistent log which was printing the config file again, which was redundant.

What was the root cause?

• when user was not providing the config name through cli, options.config was empty and hence the config name was not getting printed.

How was this tested?

• Unit Tests : Updated a test to verify that config name is printed with all the dab commands.

Sample Request(s)

dab add MyEntity -s my_entity --permissions "anonymous:*"

Information: Microsoft.DataApiBuilder 1.0.0
Information: Config not provided. Trying to get default config based on DAB_ENVIRONMENT...
Found config file: dab-config.json.
Information: Added new entity: MyEntity with source: dbo.my_entity and permissions: anonymous:*.
Information: SUGGESTION: Use 'dab update [entity-name] [options]' to update any entities in your config.

[seantleonard]

nit

updated