Add glm4 (#37388)
* add changed
* Revert "add changed"
This reverts commit 0a0166a1fe80556115a49fbf0c2132de0f4f85c9.
* update with NEW MODEL class called GLM4
* update
* Update glm4.md
* Name
* style
* fix copies
* fixup test
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Co-authored-by: Yuxuan Zhang <2448370773@qq.com>
