Update clusterOptions

[cflerin]

The current use of clusterOptions is specific to the VSC and won't work with other HPC systems:

vsn-pipelines/src/utils/processes/h5adAnnotate.nf

Line 9 in 0f1dd63

clusterOptions "-l nodes=1:ppn=2 -l walltime=1:00:00 -A ${params.global.qsubaccount}"

An improvement would be to specify the resource usage per process using the built-in directives, and have a VSC profile that sets cluster-specific settings.

process example {
    cpus 4
    memory 10.GB
    disk '2 GB'
    queue 'bigmem'
    time '1h'
    ...
}

Even better, we could set these dynamically based on the number of cells and genes (https://www.nextflow.io/docs/latest/process.html#dynamic-directives)