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/test/iidxhook/Module.mk

@@ -3,6 +3,7 @@ testexes            += iidxhook-config-iidxhook1-test
 srcdir_iidxhook-config-iidxhook1-test := src/test/iidxhook
 
 libs_iidxhook-config-iidxhook1-test     := \
+    core \
     cconfig \
     iidxhook1 \
     test \
@@ -18,6 +19,7 @@ testexes            += iidxhook-config-iidxhook2-test
 srcdir_iidxhook-config-iidxhook2-test := src/test/iidxhook
 
 libs_iidxhook-config-iidxhook2-test     := \
+    core \
     iidxhook2 \
     cconfig \
     test \