Patched smart_show.c to show SMART SelfTest log

User should see results and dates of S.M.A.R.T Self-Tests, see https://github.com/krieger-od/whdd/issues/61
Improvements to SMART info/health display - brief mode

Users would like to see S.M.A.R.T. attributes in more compact way (fits in 80 characters), added: 
-f brief --health
Merge pull request #1 from Baltix/patch-1

SMART info/health display