Improve linking for builder1 and builder2.

The creational_patterns library is required for the builder library, but
this was not specified yet.  It is now added as a PUBLIC link library
for builder and because of that, we no longer need to specify it as a
linker library for builder1 and builder2.

Creational_Patterns/Builder/CMakeLists.txt

@@ -5,9 +5,10 @@ set(builder_SRCS
 
 add_library(builder SHARED ${builder_SRCS})
 target_include_directories(builder PUBLIC ../)
+target_link_libraries(builder PUBLIC creational_patterns)
 
 add_executable(builder1 builder1.cpp)
 add_executable(builder2 builder2.cpp)
 
-target_link_libraries(builder1 builder creational_patterns)
-target_link_libraries(builder2 builder creational_patterns)
+target_link_libraries(builder1 PRIVATE builder)
+target_link_libraries(builder2 PRIVATE builder)