Clear sensitive data from trade ProcessModel

[ghost]

Fixes #6278

It turns out that the trade ProcessModel includes a copy of the peer's PaymentAccountPayload and contractAsJson. That was something missed from the earlier implementation. This PR extends the work done in #6001 to clear such data from the ProcessModel of the trade. There is no change in data visible via the GUI; this ProcessModel data is used during the trade execution only. Per user preferences defined via the previous PR, the data will be cleared for closed trades n days after the trade.

e.g.

Jul-06 12:29:14.920 [JavaFX Application Thread] INFO  b.c.a.BisqSetup: initDomainServices 
Jul-06 12:29:14.987 [JavaFX Application Thread] INFO  b.c.s.d.DisputeManager: ArbitrationManager checking closed disputes eligibility for having sensitive data cleared 
Jul-06 12:29:14.991 [JavaFX Application Thread] INFO  b.c.s.d.DisputeManager: MediationManager checking closed disputes eligibility for having sensitive data cleared 
Jul-06 12:29:14.995 [JavaFX Application Thread] INFO  b.c.s.d.DisputeManager: RefundManager checking closed disputes eligibility for having sensitive data cleared 
Jul-06 12:29:15.001 [JavaFX Application Thread] INFO  b.c.t.ClosedTradableManager: checking closed trades eligibility for having sensitive data cleared 
Jul-06 12:29:15.003 [JavaFX Application Thread] INFO  b.c.t.m.b.Trade: cleared sensitive data from processModel; of trade 00092328 
Jul-06 12:29:15.003 [JavaFX Application Thread] INFO  b.c.t.m.b.Trade: cleared sensitive data from processModel; of trade jaRXhK9 
Jul-06 12:29:15.004 [JavaFX Application Thread] INFO  b.c.t.m.b.Trade: cleared sensitive data from processModel; of trade 05198700 
Jul-06 12:29:15.005 [JavaFX Application Thread] INFO  b.c.t.m.b.Trade: cleared sensitive data from processModel; of trade 92647 

[ripcurlx]

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