Investigate integration of protein atlas data

[berntpopp]

The new protein atlas version has several interesting features:

1. Protein expression score
2. RNA single cell type specificity
3. Interactions
4. Human protein atlas informationin

example links:

• https://www.proteinatlas.org/ENSG00000008710-PKD1/tissue
• https://www.proteinatlas.org/ENSG00000008710-PKD1/cell+line
• https://www.proteinatlas.org/ENSG00000008710-PKD1

API documentation:

• https://www.proteinatlas.org/about/help/dataaccess