Wrapping Network and Traffic permissions in a class for module usage.

To add PERMISSION_SDKSANDBOX_LOCALHOST which is used in the same bitmask
as permissions declared in INetd.aidl but doesn't need visibility to the
platform.

Bug: b/326383676
Test: NetworkTrafficPermsTest
Flag: N/A
Change-Id: Id7a36f5659f8fd7542a87671d4b5f067d66db34e
4 files changed