BuildSystem: Rework the whole cmake build system

Now files are installed using the install() command instead of manually
copying files to their destinations. This allows automatic recompilation
of headers that did not work previously

userspace/stat/CMakeLists.txt

@@ -1,16 +1,9 @@
-cmake_minimum_required(VERSION 3.26)
-
-project(stat CXX)
-
 set(SOURCES
 	main.cpp
 )
 
 add_executable(stat ${SOURCES})
-target_compile_options(stat PUBLIC -O2 -g)
-target_link_libraries(stat PUBLIC libc ban)
+banan_link_library(stat ban)
+banan_link_library(stat libc)
 
-add_custom_target(stat-install
-	COMMAND ${CMAKE_COMMAND} -E copy ${CMAKE_CURRENT_BINARY_DIR}/stat ${BANAN_BIN}/
-	DEPENDS stat
-)
+install(TARGETS stat)