Understand Structure of Replay Data

[brianward92]

Need to look at a couple rows of replay data and figure out how to hold it in memory / re-write to disk in efficient manner.

[brianward92]

Notes so far:

• There is one row per game (not one row per turn, state update, etc.) This is like "daily bars" data.
• There seem to be three categories of columns a. Metadata about the game/user b. Data about the deck/sideboard structure c. Data about what happened on turns 1 through 30 (not sure if this is a fixed max turns across the board)

Ideas:

• Unpack into several rows per game with columns like player (user/oppo), turn_no (1, 2, ...), other state attributes
• Store metadata like we did game data's metadata
• Store deck/sideboard that way as well?

[brianward92]

This is complete per this commit.