llava : use logger in llava-cli

[jart]

This change removes printf() logging so llava-cli is shell scriptable.

[dagelf]

👋 Forgive my ignorance 😄 How is that different? What's wrong with 2> llama.log?

[jart]

@dagelf in most cases llava was actually logging to stdout.

[sorasoras]

@jart this break rocm compile on windows
debugbuild.txt
Can you take a look?

[dagelf]

W:/git/llama.cpp/common/.\log.h:300:48: warning: token pasting of ',' and __VA_ARGS__ is a GNU extension [-Wgnu-zero-variadic-macro-arguments] #define LOG(str, ...) LOG_IMPL("%s" str, "", ##__VA_ARGS__, "") clang issues.