* add 45 day expiration to PBAs
* add expiration field to relevant areas, DeleteExpired placeholder
* reject expired BWAs
* test for expired BWAs
* add BwExpiration config value
* fix - Satellite crashing on receiving a manipulated bandwidthagreement
* provider.PeerIdentityFromContext called twice. Remove one
* add storage node ID to serial number
* remove serialNum query and transaction
* add uuid to GeneratePayerBandwidthAllocation for testing
* enable expected failure on duplicate serialnum cases
* Revert "enable expected failure on duplicate serialnum cases"
This reverts commit 5948f43ed1741c280f0bb34a86c1c490365417bc.
* enable expected failure on duplicate serialnum cases
* Merge bwagreement db into satellite master db
* adjust to recent tally changes
* linter problems
* linter problems
* returning db structs in more optimal way
* added pointer for assignment
* error message changed
* better param message
