refactor: Entire code base, thread and log usage

Boils down to:
- Include headers
- Reduce boiler plate with helpers
- Swap out explicit usages with core API layer
  and ensure the right API is configured beforehand

src/main/ezusb2-tool/Module.mk

@@ -4,6 +4,7 @@ ldflags_ezusb2-tool   := \
     -lsetupapi \
 
 libs_ezusb2-tool     := \
+    core \
     ezusb2 \
     ezusb \
     util \

src/main/ezusb2-tool/main.c

@@ -3,11 +3,13 @@
 #include <stdio.h>
 #include <stdlib.h>
 
+#include "core/log-bt-ext.h"
+#include "core/log-bt.h"
+#include "core/log.h"
+
 #include "ezusb/util.h"
 #include "ezusb2/ezusb2.h"
 
-#include "util/log.h"
-
 static int scan()
 {
     char *path;
@@ -122,7 +124,8 @@ int main(int argc, char **argv)
 
     arg_pos = 1;
 
-    log_to_writer(log_writer_stderr, NULL);
+    core_log_bt_ext_impl_set();
+    core_log_bt_ext_init_with_stderr();
 
     if (!strcmp(argv[arg_pos], "scan")) {
         return scan();