Add option for all files/folder convert in loop

[Ravo92]

For now you can only convert one file at once, but there should be a possibility to convert a whole folder or use "*" for every file in the selected folder (drag & drop from all files in the folder throws a windows error).

[Zoft123]

If you're using Windows you can just open a command-prompt in the folder you have the files in and run:

for %f in (*.ctxr) do CtxrTool.exe %f

[Ravo92]

If you're using Windows you can just open a command-prompt in the folder you have the files in and run:

for %f in (*.ctxr) do CtxrTool.exe %f

Yea i know, i already did it with powershell but that isnt the reason for the issue.