ggml : more perfo with llamafile tinyblas on x86_64 (#10714)

* more perfo with llamafile tinyblas on x86_64.

- add bf16 suport
- change dispache strategie (thanks:
https://github.com/ikawrakow/ik_llama.cpp/pull/71 )
- reduce memory bandwidth

simple tinyblas dispache and more cache freindly

* tinyblas dynamic dispaching

* sgemm: add M blocs.

* - git 2.47 use short id of len 9.
- show-progress is not part of GNU Wget2

* remove not stable test

scripts/hf.sh

@@ -26,7 +26,7 @@ function has_cmd {
 }
 
 if has_cmd wget; then
-    cmd="wget -q --show-progress -c -O %s/%s %s"
+    cmd="wget -q -c -O %s/%s %s"
 elif has_cmd curl; then
     cmd="curl -C - -f --output-dir %s -o %s -L %s"
 else