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/test/CMakeLists.txt

@@ -1,16 +1,8 @@
-cmake_minimum_required(VERSION 3.26)
-
-project(test CXX)
-
 set(TEST_SOURCES
 	test.cpp
 )
 
 add_executable(test ${TEST_SOURCES})
-target_compile_options(test PUBLIC -O2 -g)
-target_link_libraries(test PUBLIC libc)
+banan_link_library(test libc)
 
-add_custom_target(test-install
-	COMMAND ${CMAKE_COMMAND} -E copy ${CMAKE_CURRENT_BINARY_DIR}/test ${BANAN_BIN}/
-	DEPENDS test
-)
+install(TARGETS test)