A few initial queries for platinum genomes.
Update queries to new Google Genomics Public Data table.

Also update changed column names and BRCA1 coordinates since the data is now zero-based instead of one-based.
Update paths to SQL files.
Update alternate-alleles story.

For schema changes and 1-based to 0-based positional changes.
Query updates per data changes.

A few more changes for the 1-based coordinate to 0-based coordinates and also some changes for single-allele chromosomes Y and MT.
Updates for the main 1,000 Genomes story.

With the recent data update, there is an additional superpopulation and data for chromosomes Y and MT.