Add storagePath redis cache to avoid db check

[raymondjacobson]

Trello Card Link

n/a

Description

Adds a redis caching layer in front of the storagePath query. I think this is a pretty safe change to make and it will reduce the # of db roundtrips we need to take for content.

I think the next logical step if we want to move forward here is to add the first-level image/file cache. With 10G memory, we could probably surface LRU-style the last 20K images/files

Services

• Creator Node

Does it touch a critical flow like Discovery indexing, Creator Node track upload, Creator Node gateway, or Creator Node file system?

Delete an option.

• 🚨 Yes, this touches all cn file reads

How Has This Been Tested?

Please describe the tests that you ran to verify your changes. Provide repro instructions & any configuration.
Include log analysis if applicable.

1. Brought up all services locally. Made an account, uploaded a track, verified "cache hit" vs "cache miss" scenarios with logs.