wip: working on extern in VM

- Feat: add writer externs writing fns
- Feat: add VM reader functions

CMakeLists.txt

@@ -159,6 +159,13 @@ if (NOT FZL_SKIP_VM)
 		src/vm/handlers/group_str.c
 		src/vm/handlers/group_strcmp.c
 		src/vm/handlers/master.c
+		src/vm/reader/utility.c
+		src/vm/reader/vm_rd_consts.c
+		src/vm/reader/vm_rd_extern_fns.c
+		src/vm/reader/vm_rd_extern_libs.c
+		src/vm/reader/vm_rd_extern_types.c
+		src/vm/reader/vm_rd_header.c
+		src/vm/reader/vm_rd_sections_sz.c
 		src/vm/fzl_vm.c
 		src/vm/fzl_vm_env.c
 		src/vm/fzl_vm_debug.c
@@ -186,6 +193,12 @@ endif ()
 if (FZL_TESTS)
 	enable_testing()
 
+	file(GLOB TEST_LIBS RELATIVE "${CMAKE_CURRENT_SOURCE_DIR}" "tests/libs/*.c")
+	foreach (TEST_LIB IN LISTS TEST_LIBS)
+		get_filename_component(LIB_NAME "${TEST_LIB}" NAME_WE)
+		add_library("${LIB_NAME}" ${TEST_LIB})
+	endforeach ()
+
 	file(GLOB TEST_PROGS RELATIVE "${CMAKE_CURRENT_SOURCE_DIR}" "tests/programs/*.fzs")
 	foreach (TEST_FILE IN LISTS TEST_PROGS)
 		get_filename_component(TEST_NAME "${TEST_FILE}" NAME_WE)