Change default resource requirements and add different resource profiles

[jvfe]

• For example -profile small|medium|large which should account for datasets of 0-200 assemblies, 200-1000 assemblies, >1000 assemblies, respectively.
• Make small the default.
• Document this.
• Base on results acquired from testing-datasets, i.e. 20x5, 100-genome entirococcus (small); Jee-entirococcus (medium); Entirococcus (Large).
• Disable/enable parts of the workflow based on these profiles (sensible defaults).