tests to create 'include/exclude' type filters for errata
Remove duplicate tests related to errata filters
Removed 'filter-errata-by-type' fn as it is merged in fn 'filter-errata-by-date-type'
updated tests to pass assertion messages as data
updated errata test to pass expected messages as data
generated errata test data by calling 'gen-errata-test-data'
Removed blank lines
updated test to get date via 'SimpleDateFormat' instead of 're-order-date' fn
updated package and package group filter tests
Merge pull request #822 from sghai/cv-filters

Tests to create include/exclude type filters for errata