showCoreVersion now use fmt print instead of Log::info.

include/aidge/utils/sys_info/CpuVersionInfo.hpp

 #ifndef AIDGE_UTILS_SYS_INFO_CPU_VERSION_INFO_H
 #define AIDGE_UTILS_SYS_INFO_CPU_VERSION_INFO_H
 
-#include "aidge/utils/Log.hpp"
+#include <fmt/core.h>
 #include "aidge/backend/cpu_version.h"
 
 namespace Aidge {
@@ -15,22 +15,22 @@ constexpr inline const char * getBackendCPUGitHash(){
 }
 
 void showBackendCpuVersion() {
-    Log::info("Aidge backend CPU: {} ({}), {} {}", getBackendCPUProjectVersion(), getBackendCPUGitHash(), __DATE__, __TIME__);
+    fmt::println("Aidge backend CPU: {} ({}), {} {}", getBackendCPUProjectVersion(), getBackendCPUGitHash(), __DATE__, __TIME__);
         // Compiler version
     #if defined(__clang__)
     /* Clang/LLVM. ---------------------------------------------- */
-        Log::info("Clang/LLVM compiler version: {}.{}.{}\n", __clang_major__ , __clang_minor__, __clang_patchlevel__);
+        fmt::println("Clang/LLVM compiler version: {}.{}.{}\n", __clang_major__ , __clang_minor__, __clang_patchlevel__);
     #elif defined(__ICC) || defined(__INTEL_COMPILER)
     /* Intel ICC/ICPC. ------------------------------------------ */
-        Log::info("Intel ICC/ICPC compiler version: {}\n", __INTEL_COMPILER);
+        fmt::println("Intel ICC/ICPC compiler version: {}\n", __INTEL_COMPILER);
     #elif defined(__GNUC__) || defined(__GNUG__)
     /* GNU GCC/G++. --------------------------------------------- */
-        Log::info("GNU GCC/G++ compiler version: {}.{}.{}", __GNUC__, __GNUC_MINOR__, __GNUC_PATCHLEVEL__);
+        fmt::println("GNU GCC/G++ compiler version: {}.{}.{}", __GNUC__, __GNUC_MINOR__, __GNUC_PATCHLEVEL__);
     #elif defined(_MSC_VER)
     /* Microsoft Visual Studio. --------------------------------- */
-        Log::info("Microsoft Visual Studio compiler version: {}\n", _MSC_VER);
+        fmt::println("Microsoft Visual Studio compiler version: {}\n", _MSC_VER);
     #else
-        Log::info("Unknown compiler\n");
+        fmt::println("Unknown compiler\n");
     #endif
 
 }