Improve ACwater log messages
Currently, ACwater/Polymer prints the following log messages:
2022/12/08 17:52:51: Currently only tested with ERA5 data, i.e. set True for "auto_download_ecmwf"
2022/12/08 17:53:12: Landmask is EnMAP L1B
I think for the user, they are not really understandable. What is tested with ERA5? Does it mean that the user set the EnPT parameter "auto_download_ecmwf" to True? I also don´t understand what the second message means.