testBlowFishDecrypt() testcase added

Signed-off-by: A V Minhaz <minhazav@gmail.com>
fixing build test and adding test cases

Test case added for testBlowfishDecrypt() and modified for testBlowfishEncrypt()
Signed-off-by: A V Minhaz <minhazav@gmail.com>
Merge pull request #970 from mebjas/QA_4_1

testBlowFishDecrypt() testcase added