Handle insufficent resources for samtools mpileup

[sylvinite]

What needs to be done:
Samtools mpileup may softcrash and provide incorrect consensus data
GMS-artic/MUTANT needs to detect this, interupt the run and throw an error.

Suggestions on how to get it done:
Preferably directly in https://github.com/genomic-medicine-sweden/gms-artic
Otherwise add a function in MUTANT
Check the mpileup log for crash information?
Otherwise evaluate the consensus file for poly-nucleotide tails

What are the arguments for getting it done:
The error breaks results and is currently undetectable.
If we don't solve this, we may never trim down the amount of resources allocated to MUTANT.

Task is considered finished when:
Run MUTANT with minimal resources on the testdata. This should cause the error, trigger the interupt and throw the error

[sylvinite]

Linked issue in genomic-medicine-sweden/gms-artic#3

[pbiology]

Right now handeld by throwing more memory on the task. Has not been a concern for quite some time.