Pull request #751: CAS-12753
Merge in CASA/casa6 from CAS-12753 to master
* commit 'f9b3541658759f6204678c996c120c00fe1f0d37':
Add partial telescope name matching logic to simutil.readantenna (CAS-12753)
Resolve syntax issue in simutil.py for CAS-12753
Update simutil with validation patch for CAS-12753
Fix access to simutil user input in second method updated by previous commits for CAS-12753.
Mirror changes from commit 09ea5179eac833080ce992d51c9f94b8dbc7c75e in casa5 copy of simutil for CAS-12753.
Augment string matching in two simutil methods to protect against the possibility of _expected_ lowercase observatory name input, for CAS-12753.
