move some posix and C++ multithread examples to lkmc

Author: cirosantilli

cpp/README.md

@@ -88,12 +88,7 @@
         1.  [iostream](iostream.cpp)
         1.  [File IO](file_io.cpp)
     1.  Multi-threading
-        1.  [thread::hardware_concurrency](thread_hardware_concurrency.cpp)
-        1.  [thread::this_thread::sleep_for](sleep_for.cpp)
         1.  [thread return value](thread_return_value.cpp)
-        1.  [atomic](atomic.cpp)
-            1.  [atomic<bool>](atomic_bool.cpp.off)
-        1.  [sleep_for](interactive/sleep_for.cpp)
         1.  [mutex](interactive/mutex.cpp)
     1.  [algorithm](algorithm.cpp)
         1.  [heap](heap.cpp)

cpp/atomic_bool.cpp.off

@@ -22,9 +22,8 @@
 1.  [getrusage](getrusage.c)
 1.  [pthread](pthread.md)
     1. [pthread_mutex](pthread_mutex.c)
-    1. [pthread_tid](pthread_tid.c)
     1. [pthread_deadlock](pthread_deadlock.c)
-    1. [pthread array sym](interactive/pthread_array_sum.c)
+    1. [pthread array sum](interactive/pthread_array_sum.c)
     1. [pthread CPU heavy work](interactive/pthread_cpu_heavy_work.c)
 1.  [Regex](regex.c)
 1.  File IO