Add env filter regex option for test reports

There is now a regex filter option to clean out the environment before
writting the test report.
Reworked env-regex-filter a bit
env-filter-regex: Fix typo
vsc-base update
Merge pull request #13 from boegel/testreport-regex

vsc-base update
rename --env-filter-regex to --test-report-env-filter, add unit test
Merge pull request #14 from boegel/testreport-regex

rename --env-filter-regex to --test-report-env-filter, add unit test
correct unit test, also check whether use --test-report-env-filter is reported correctly
Merge pull request #15 from boegel/testreport-regex

correct unit test, also check whether use --test-report-env-filter is reported correctly
Merge pull request #959 from wpoely86/testreport-regex

Add env filter regex option for test reports