Things to be done related to Cache

[hit12369]

From #40 (review)

• Docs need to be made regarding all the choices of localCache, LRU, differences for pika, etc. separately than the jsdoc.
• jsdoc is not updated.
• No tests separately for LRU.
• Types need to be updated. Fix types for version 2.16.0 #37
• Make CLI for benchmarking? (Might not be necessary, because it includes many extra dependencies)