Further refine evidence references

[mellybelly]

Currently, we have evidence on the phenotype profile: phenotype_profile:

• entity: "doi: 10.1101/mcs.a000661#patient1" evidence: type: TAS # Traceable author statement source: id: "doi: 10.1101/mcs.a000661" title: "De novo pathogenic variants in CHAMP1 are associated with global developmental delay, intellectual disability, and dysmorphic facial features"

Does evidence go on any element? e.g. a phenotype profile, a genotype profile, a PED/Family reference? Does it go on individual phenotypes? Or does the whole phenopacket get just one or more evidence assertions?

We should also further decide how/which evidence codes to use and what source information should be described with different evidence codes. @mbrush can you help define a few. E.g. is TAS good here? For OMIM, the example has an IEA, for patient example1, it says "observation".

[cmungall]

The mapping between shortforms (e.g. TAS) and class IRIs should go in the LD-context #40