Added the blackjack lib

blackjack/CMakeLists.txt

@@ -0,0 +1,18 @@
+add_library(blackjack "")
+target_sources(blackjack
+  PRIVATE
+  ${CMAKE_CURRENT_SOURCE_DIR}/Deck.cpp
+    ${CMAKE_CURRENT_SOURCE_DIR}/Player.cpp
+    ${CMAKE_CURRENT_SOURCE_DIR}/Card.cpp
+)
+
+target_include_directories(blackjack
+  PUBLIC
+  ${CMAKE_CURRENT_LIST_DIR}
+  ${PROJECT_BINARY_DIR}
+  ${PROJECT_DIR}/external
+)
+
+target_compile_options(blackjack PRIVATE $<$<CONFIG:Debug>:
+  -Wall -Wextra -pedantic-errors -Wconversion -Wsign-conversion -g
+  >)