- modify structure of CMakeLists.txt under apps/
* move apps/CMakeLists.txt to apps/openssl/ since this is for openssl build
* create new apps/nc/CMakeLists.txt for nc build
* modify apps/CMakeLists.txt just add_subdirectory()
- add checking and compile of arc4random_uniform()
- add installing man files, openssl.1 and nc.1