model : add openPangu-Embedded (#16941)
* Model: add openPangu-Embedded
* fixed according to reviewer's comments
* fixed the chat template check condition
* Apply suggestions from code review
change the chat-template check condition and some formatting issue
Co-authored-by: Sigbjørn Skjæret <sigbjorn.skjaeret@scala.com>
* whitespace cleanup
---------
Co-authored-by: Sigbjørn Skjæret <sigbjorn.skjaeret@scala.com>