Better table names

[theOGognf]

Table names should be fully qualified such that they can be accessed according to their submodule location.

An example would be the prices table in yfinance. It should be something along the lines of "yfinance.raw.prices". Similarly, the daily features table should be something like "yfinance.refined.daily"

[theOGognf]

Table names are improved on feature-agg branch