Added Meshery helm chart to stable repository

Created by: sivanaikk

Signed-off-by: Kethavath Siva Naik sivanaikk0903@gmail.com

Meshery is the open source, service mesh management plane that enables the adoption, operation, and management of any service mesh and their workloads.

Meshery is a CNCF project.

Project website https://meshery.io/