Datacleaning example does not provide adequate user feedback nor usage information

[QUARK88]

No output from the data cleaning [when used on 20170529_111858_VWFS Deneb_PDS.s7k]

[glabmoris]

After testing, this was due to the complete lack of feedback from the application, which was very misleading to the end user. To solve this issue, we need to add the following features to the data-cleaning executable:

1. When starting, the program should display "Reading georeferenced data from standard input" on the standard error output (stderr....it can either use classic C's fprintf() function or C++'s std::cerr)

2. When not passing any parameters through the command line, it should exit and display a small usage information notice on the standard error output such as:

Usage: data-cleaning [-q minimum quality factor] [-i minimum intensity value]

@QUARK88 code this and submit a pull request referencing this issue