Adding spring-files

[asp8200]

Needed for tests of new functionality in Sarek for handling fastq.gz.spring-files as input. https://github.com/nf-core/sarek/pull/1534

From our usual test_1.fastq.gz and test_2.fastq.gz, I got

test_1.fastq.gz.spring
test_2.fastq.gz.spring
test_R1_R2.fastq.gz.spring

and they were made with spring 1.1.1 like this:

spring -c -g -i test_1.fastq.gz -o test_1.fastq.gz.spring
spring -c -g -i test_2.fastq.gz -o test_2.fastq.gz.spring
spring -c -g -i test_1.fastq.gz test_2.fastq.gz -o test_R1_R2.fastq.gz.spring

[asp8200]

@maxulysse : You sure this should have gone to the branch sarek3? It seems that all the other test-configs over in the sarek-repo are fetching data from the modules-branch.

[maxulysse]

Yeah it's fine