Disabling accession filters

Add support to disable some accession filters: If a genebank does not want to use the "sampStat" filter, they can disable it in config and it will not show in the form.

genesysConfig = {
...
 accession: {
  ...
  filters: {
    sampStat: false,
    accessionNumbers: false,
  }

If config.accession?.filters?.sampStat === false then the filter is not shown.