normalize source code names

tests/test_anim_gen.py

@@ -9,4 +9,4 @@ import os, sys
 if __name__ == "__main__":
     from test_utils import plugin_test
 
-    plugin_test(plugin='crazy_functions.数学动画生成manim->动画生成', main_input="A point moving along function culve y=sin(x), starting from x=0 and stop at x=4*\pi.")
+    plugin_test(plugin='crazy_functions.Math_Animation_Gen->动画生成', main_input="A point moving along function culve y=sin(x), starting from x=0 and stop at x=4*\pi.")