Dev (#17)

* #将拦截器改名为过滤器，更加接近职能

tests/test-simple.c

@@ -0,0 +1,14 @@
+#include "logging.h"
+
+int main() {
+    Logger *logger = newDefaultLogger("testLogger", LOG_DEBUG);
+
+    log_info("This is an info message");
+    log_error("This is an error message%s", "123");
+    log_fatal("This is an fatal message");
+    log_debug("This is a debug message");
+    log_warning("This is a warning message%s", "123");
+
+    destroyDefaultLogger();
+    return 0;
+}