Further work on leaderboards

- Modularize tests
- Add migrations
- Fix switch case so it actually breaks
- Add in missing writes
- Beginning work on custom migration to move the leaderboard to the final state

migrations/dlu/10_Update_Leaderboard_Columns.sql

@@ -0,0 +1 @@
+# This migration is a mock.  See the real migration in MigrationRunner::MigrateLeaderboard.

migrations/dlu/9_Update_Leaderboard_Storage.sql

@@ -0,0 +1,8 @@
+ALTER TABLE leaderboard
+ADD COLUMN hitPercentage FLOAT NOT NULL DEFAULT 0,
+ADD COLUMN streak INT NOT NULL DEFAULT 0,
+ADD COLUMN bestLapTime FLOAT NOT NULL DEFAULT 0,
+ADD COLUMN numWins INT NOT NULL DEFAULT 0,
+MODIFY time FLOAT NOT NULL DEFAULT 0;
+
+ALTER TABLE leaderboard CHANGE time bestTime float;