feat: adding tcsh support

[lofiCafe]

What kind of change does this PR introduce? (check at least one)

• [ ] Bugfix
• [x] Feature
• [ ] Code style update
• [ ] Refactor
• [ ] Build-related changes
• [ ] Other, please describe:

The description of the PR: Adding Tcsh support. Tested and passed on both macOS 10.15.7 and CentOS 7.5

Other information: