Rename attention to scaled_dot_product_attention and separate the kernels into modular packages

Author: voltjia

attention.py

@@ -2,9 +2,9 @@
 
 from transformers import AutoModelForCausalLM, AutoTokenizer
 
-from attention import Attention
 from fused_rms_norm import RMSNorm
 from linear import Linear
+from scaled_dot_product_attention import Attention
 from silu import SiLU
 from utils import replace_module