Use blobs for strings and byte array properties

Use readBlob/writeBlob methods for property values of type string and byte[]
to avoid TransactionTooLargeException
Misc: added additional dump info to VehicleHal service

Change-Id: Ica7553e7d1b2ae6d43f57e02e490fa6e5fa01b18
Fix: b/30634124
4 files changed