Cherry-pick data-seeding helm chart changes from master to m10

Merging data seeding helm charts to create an umbrella chart named data-seeding

See merge request !259 (merged)

(cherry picked from commit 1e2dd847)

584025ab [+] added all DS charts under an umbrella chart named 'data-seeding' dea15e92 [+] added readme and partition hash support for schema 74894555 [+] renamed sub-chart names