Refactor CMakeLists.txt for improved organization and add test data copying

tool/CMakeLists.txt

@@ -1,11 +1,47 @@
-project(aaruformattool)
+# Tool executable project
+project(aaruformattool C CXX)
 
+# Find required dependencies
 find_package(ICU COMPONENTS uc REQUIRED)
 find_package(Argtable3 CONFIG REQUIRED)
 
-include_directories(${ICU_INCLUDE_DIRS})
+# Tool executable
+add_executable(aaruformattool
+    main.c
+    version.h
+    aaruformattool.h
+    identify.c
+    info.c
+    helpers.c
+    read.c
+    printhex.c
+    verify.c
+    ecc_cd.c
+    commands.h
+    commands.c
+    usage.h
+    usage.c
+    compare.c
+    cli_compare.c
+    convert.c
+    termbox2.h
+)
 
-add_executable(aaruformattool main.c version.h aaruformattool.h identify.c info.c helpers.c read.c printhex.c verify.c ecc_cd.c
-               commands.h commands.c usage.h usage.c compare.c cli_compare.c convert.c termbox2.h)
-target_link_libraries(aaruformattool "aaruformat" argtable3::argtable3)
-target_link_libraries(aaruformattool "aaruformat" ICU::uc)
+# Set C as the linker language (even though we enable CXX for stdlib)
+set_target_properties(aaruformattool PROPERTIES LINKER_LANGUAGE C)
+
+# Set up include directories
+target_include_directories(aaruformattool PRIVATE ${ICU_INCLUDE_DIRS})
+
+# Link libraries
+target_link_libraries(aaruformattool
+    PRIVATE
+        aaruformat
+        argtable3::argtable3
+        ICU::uc
+)
+
+# On macOS/iOS, explicitly link the C++ standard library for ICU dependencies
+if(APPLE)
+    target_link_libraries(aaruformattool PRIVATE "-lc++")
+endif()