Extend cli options to support unlimited input files for the merge

[ahehl]

An option to support many input files via --input would make the cli more flexible

[MrSoerenAndersen]

Hi Andreas - Thanks for your interest and pull request...

The program file is intended to serve as an example for a custom CLI version of LivingDoc, but it will not be included in the distributed NuGet packages. To emphasize this, I plan to split LivingDoc into two projects to reduce dependencies:

• Expressium.LivingDoc – A class library project for distributing the core LivingDoc functionality.
• Expressium.LivingDocCLI – A CLI project demonstrating a custom usage of the LivingDoc functionality.

Once this structure is in place, it would be great if you could create a new pull request. I can see you have some excellent ideas to enhance the program file.

Best regards
Soeren

[ahehl]

I updated the branch

[MrSoerenAndersen]

Super - Feedback...

• Namespace should be Expressium.LivingDoc.Cli
• The merge option seems to be not working via batch file in your version
• We should use an official version of System.CommandLine NuGet V2.0.0
• All batch files must be updated and working

[ahehl]

Updated namespace
Fixed bat files
System.CommandLine release is planned for November
dotnet/command-line-api#2576

[MrSoerenAndersen]

Let's wait until we have an official version of System.CommandLine