[CMake] Write CMakeLists.txt for this C++ program

[Eric Dönges]

To correct myself:

On 20.06.19 00:48, Eric Dönges wrote:
> 
> target_link_libraries (main
> 	build/src/libyaracpp.a
> 	build/deps/yara/src/yara/libyara/.libs/libyara.a
> 	yaracpp yara pthread ssl crypto)
> 

This of course should be

target_link_libraries (main
 	build/src/libyaracpp.a
 	build/deps/yara/src/yara/libyara/.libs/libyara.a
 	pthread ssl crypto)