libs : rename libcommon -> libllama-common (#21936)

* cmake : allow libcommon to be shared

* cmake : rename libcommon to libllama-common

* cont : set -fPIC for httplib

* cont : export all symbols

* cont : fix build_info exports

* libs : add libllama-common-base

* log : add common_log_get_verbosity_thold()

tests/test-quantize-stats.cpp

@@ -1,10 +1,13 @@
-#include "ggml.h"
-#include "ggml-cpu.h"
 #include "llama.h"
+
+#include "build-info.h"
 #include "common.h"
 
 #include "../src/llama-model.h"
 
+#include "ggml.h"
+#include "ggml-cpu.h"
+
 #include <algorithm>
 #include <cassert>
 #include <cinttypes>
@@ -298,7 +301,7 @@ int main(int argc, char ** argv) {
         return 1;
     }
 
-    print_build_info();
+    llama_print_build_info();
 
     // load the model
     fprintf(stderr, "Loading model\n");