Team and player payroll exports

[tbrittain]

Add the following exports for the most recent season:

1. Teams

• Exports teams with payroll and total player stats (power, contact, etc.)
• Also includes wins and losses and related stats at the current point in the season

3. Players

• Exports players from each team (not including free agents) with payroll and total player stats (power, contact, etc.) and their current age
• Also includes the player's primary and secondary traits if applicable (RBI Man, Specialist, etc.)
• Does NOT include pitcher's pitches. TBD in Add pitcher pitch types to season players export #66

Closes #36