Feature requests DNG converter

Hello!

Due to a lack of Lightroom support for my new camera till now I currently have to use DNG converter.

Its better to have than not being able to shoot and handle raw files in Lightroom, but its not ideal.

I am using the Mac version 9.12

As I have a folder approach which might have additional raw files in there it would be good to have a filer

which files should be converted, (guess best would be a REGEX), but at least a prefix (like DSC_) and suffix (like NEF).

Some more points regards the CLI function of DNG Converter.

* please add a -h / --help and an info if no CLI arguments are given to inform about the usage

* please add a verbose option to see which file is currently converted

* please add a progress indicator to see how many files have been processed / still queued

* I could not find an option to use a capital letter suffix .DNG instead of .dng (possible in the GUI)