fixed timestamp issue for start and end filter and mapping correction in ibm_security_verify module.

[kr-riteshsinha]

No description provided.

[CLAassistant]

Thank you for your submission! We really appreciate it. Like many open source projects, we ask that you all sign our Contributor License Agreement before we can accept your contribution.
3 out of 4 committers have signed the CLA.

✅ mdazam1942
✅ kr-riteshsinha
✅ delliott90
❌ Ritesh Kumar

---

Ritesh Kumar seems not to be a GitHub user. You need a GitHub account to be able to sign the CLA. If you have already a GitHub account, please add the email address used for this commit to your account.
_{You have signed the CLA already but the status is still pending? Let us recheck it.}

[codecov]

Codecov Report

Base: 84.63% // Head: 84.63% // Increases project coverage by +0.00% 🎉

Coverage data is based on head (6ab6978) compared to base (0072513).
Patch coverage: 92.85% of modified lines in pull request are covered.

Additional details and impacted files

@@           Coverage Diff            @@
##           develop    #1142   +/-   ##
========================================
  Coverage    84.63%   84.63%           
========================================
  Files          557      557           
  Lines        41348    41360   +12     
========================================
+ Hits         34995    35006   +11     
- Misses        6353     6354    +1     

Impacted Files	Coverage Δ
...urity_verify/stix_translation/query_constructor.py	76.87% <92.85%> (+1.10%)	⬆️

Help us with your feedback. Take ten seconds to tell us how you rate us. Have a feature suggestion? Share it here.

☔ View full report at Codecov.
📢 Do you have feedback about the report comment? Let us know in this issue.

[mdazam1942]

@kr-riteshsinha please sign the CLA