v0.7.0 - Activity timestamps, bug fixes & more

Bug fixes:

• Flipped team indexes in header

Changes:

• Added activity timestamps
• Removed static data output flag (unnecessary for now)
• Made majority of API private (unnecessary for users to use internal methods to traverse the replay file)
• New internal system for reading replays
• Updated example json file

Full Changelog: v0.6.1...v0.7.0