New-services's MD5 verification checks all the reads from a project

[victor5lm]

As per the title, currently the new-service module reads the .md5 file associated to a project and launches md5sum -c for all the .fastq.gz files that are stored in the project's folder. This should be fixed so that md5sum -c checks only those .fastq.gz files that correspond to the samples being analysed within a resolution.