Allow timeouts to be rounded so they may comply with the spec #569
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Motivation:
The gRPC spec dictates that timeouts may be no longer than 8 digits
long. As such methods for creating
GRPCTimeouts all throw if the giventimeout is not valid. In the vast majority of cases this is not actually
an issue and having to handle the exception can be a pain.
Modifications:
Add non-throwing factory methods to
GRPCTimeoutwhich round thetimeout so that it may be encoded over the wire.
Result:
Timeouts are easier to create.