[WIP] Fix datalake mofules

[arjunmahishi]

Elasticache

• Merge physical and logical view is such a way that the all the metrics appear in the logical view and nothing in physical view
• Remove latency_histo and use regilar gauges for latency min, max and avg

Cloudfront

• Suffix physical component type with _physical. This will make the physical component type different from data_for type, allowing us to make the physical component name static and data_for name dynamic

This is a WIP. Do not merge