Deployment to fly.io for the indianopenmaps domain

A display server for the data hosted at the following repos:

• indian_admin_boundaries
• indian_water_features
• indian_railways
• indian_roads
• indian_communications
• indian_facilities
• indian_cadastrals
• indian_land_features
• india_natural_disasters
• indian_buildings
• indian_power_infra

Contains code for getting tiles from a big pmtiles file which has been split into multiple shards( to overcome hosting size limits? ).

Tools for splitting a big pmtiles into smaller ones is at pmtiles_mosaic.

See the list of data available at https://indianopenmaps.fly.dev/