common : move arg parser code to arg.cpp (#9388)

* common : move arg parser to arg.cpp

* better categorize args

* add cmake

* missing climits

* missing cstdarg

* common : more explicit includes

* fix build

* refactor gpt_params_parse

* update server readme

* fix test

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Co-authored-by: Georgi Gerganov <ggerganov@gmail.com>

common/CMakeLists.txt

@@ -54,6 +54,8 @@ add_library(${TARGET} STATIC
     base64.hpp
     common.h
     common.cpp
+    arg.h
+    arg.cpp
     sampling.h
     sampling.cpp
     console.h