infill : add new example + extend server API (#3296)

* vvhg-code-infill (#1)

* infill in separate example (#2)

* reverted changes to main and added infill example

* cleanup

* naming improvement

* make : add missing blank line

* fix missing semicolon

* brought infill up to current main code

* cleanup

---------

Co-authored-by: Cebtenzzre <cebtenzzre@gmail.com>

.gitignore

@@ -40,6 +40,7 @@ models-mnt
 /embedding
 /gguf
 /gguf-llama-simple
+/infill
 /libllama.so
 /llama-bench
 /main