- Added parameter to sort outputcolumns for ConvertTo-Markdown

[herculosh]

• ContainsKey not required, Contains do the same and is compatible with ordered Columns
• Describing ConvertTo-Markdown
  • Count of Csv greather then 1
  • Order of Columns should be mixed up 11ms
  • Keep order of Columns
  • Keep order of Columns from Pipeline
  • Try column sorted should raise an error

[EReis0]

I ran into the same issue with this and it's a shame this fantastic module with over 10k downloads in psgallery... is no longer being maintained. I am going to review your pull request and if that will solve my issue, I will just fork this project and make the updated change.