feat: `DeepEval.get_model_def_script` and common `dp show` #6551

Job	Run time
Build C library (2.15, libdeepmd_c.tar.gz)	6m 49s
Build C library (2.14, >=2.5.0rc0,<2.15, libdeepmd_c_cu11.tar.gz)	6m 26s
Test building from C library	1m 4s
Pass building c library	2s
	14m 21s

Provide feedback