Combine HBD franchise stats for players that have had multiple stints with a team.

In HBD, if a player leaves a team through a trade or FA, cumulative franchise stats do not stack. Meaning, if a player is reacquired by his old franchise, his years with the team and career stats are not added together. This could impact whether a player breaks a franchise career record or wears that team's cap in the HBD HOF. One example would be Albert Pujols who hit his 700th career HR with the Cardinals. In real life, that 700th home run was tallied with all home runs that Pujols hit with the Cardinals. This doesn't happen for HBD.