Create curl wrapper class to encapsulate libcurl usage in common/arg.cpp#32

Copilot wants to merge 4 commits intoresumableericcurtin/llama.cpp:resumablefrom

copilot/fix-30afa5c9-fe59-4ba4-92d9-13efa866c381ericcurtin/llama.cpp:copilot/fix-30afa5c9-fe59-4ba4-92d9-13efa866c381Copy head branch name to clipboard