handle not encoded + in query params, fixes #15

- add debug level, by givein parameter -vv
- if the base64 string is not urlencoded, then + will be replaced by a space,
  what cannot be decoded anymore
  --> replace spaces back to plus
- add test

test_extract_otp_secret_keys_pytest.py

@@ -88,6 +88,39 @@ Type:   OTP_TOTP
     assert captured.err == ''
 
 
+def test_extract_not_encoded_plus(capsys):
+    # Act
+    extract_otp_secret_keys.main(['test/test_plus_problem_export.txt'])
+
+    # Assert
+    captured = capsys.readouterr()
+
+    expected_stdout = '''Name:   SerenityLabs:test1@serenitylabs.co.uk
+Secret: A4RFDYMF4GSLUIBQV4ZP67OJEZ2XUQVM
+Issuer: SerenityLabs
+Type:   OTP_TOTP
+
+Name:   SerenityLabs:test2@serenitylabs.co.uk
+Secret: SCDDZ7PW5MOZLE3PQCAZM7L4S35K3UDX
+Issuer: SerenityLabs
+Type:   OTP_TOTP
+
+Name:   SerenityLabs:test3@serenitylabs.co.uk
+Secret: TR76272RVYO6EAEY2FX7W7R7KUDEGPJ4
+Issuer: SerenityLabs
+Type:   OTP_TOTP
+
+Name:   SerenityLabs:test4@serenitylabs.co.uk
+Secret: N2ILWSXSJUQUB7S6NONPJSC62NPG7EXN
+Issuer: SerenityLabs
+Type:   OTP_TOTP
+
+'''
+
+    assert captured.out == expected_stdout
+    assert captured.err == ''
+
+
 def test_extract_printqr(capsys):
     # Act
     extract_otp_secret_keys.main(['-p', 'example_export.txt'])