[tests] test OS_WordMatch
[tests] test OS_StrIsNum
[tests] test OS_StrHowClosedMatch
[tests] test OS_StrBreak
[tests] use match tests also for regex
[tests] first try to test regex extractions
[tests] disable regex extractions tests until fixed
Merge pull request #188 from cgzones/os_regex_unittests

os_regex unit tests