Add missing translation support

Update a number of files to add missing translation support.

The patch adds a new hacking check - N320. This ensures that
all log messages, except debug ones, have translations.

A '# noqa' indicates that the validation will not be done on
the specific log message. This should be used in cases where
the translations do not need to be done, for example, the log
message is logging raw data.

Change-Id: I3e1fdd04d87b09dff50950b5e85f5cacfb29afdc
Closes-bug: #1314994
Merge "Add missing translation support"