Anatomical Structures, Cell Types, plus Biomarkers (ASCT+B) table for Brain, v1.5

[Brain v1.5](https://cdn.humanatlas.io/hra-releases/v2.0/asct-b/asct-b-allen-brain.csv) is a minor update of the table<br>that provides parent cell type mappings to Cell Ontology for the specific cell types that were added to [Brain<br>v1.4](https://cdn.humanatlas.io/hra-releases/v1.4/asct-b/asct-b-allen-brain.csv), but do not yet have Cell Ontology<br>(CL) or Provisional Cell Ontology (PCL) IDs. More of the brain anatomy was also mapped to the Uberon multispecies<br>anatomy ontology based on exact matching synonym terms.