get_alias: Get Gene Name Alias for a Given Hugo Symbol
Description
This function grabs known gene aliases for a given Hugo Symbol.
You may notice that genes -alias pairs are not always consistent. For example
get_alias("KMT2D") will return "MLL2" but get_alias("MLL2") will not return "KMT2D"
This function relies on the existing cBioPortal API which controls this database
of aliases. Therefore, this is a convenience function but
you may want to consider a more carefully curated alias list like cbioportalR::impact_gene_info