Metloom architecture - One class per file

[jomey]

As a newcomer to metloom, it is quite challenging to find specific classes or tests when trying to figure out execution logic. You can use your IDE (or preferred environment) to do a search and it sill leaves my head spinning when trying to navigate. Files also get quite long right now.

I am proposing three architectural changes/conventions:

• File names to match their class
• One class per file
• Each class test file name corresponds with "test_my_awesome_class"

I have followed this pattern in the past and it makes code navigation quite simpler (especially for newcomers). It also makes testing each class simpler and organizes your test suite the same manner as your sources.

What do you guys think?

I am happy to prototype this in a PR