Import old and deprecated 'fb_o' module from old XTLDR

xtldr2/modules/fb_o/CMakeLists.txt

@@ -0,0 +1,27 @@
+# XT Boot Loader
+PROJECT(XTLDR_FB_O)
+
+# Specify include directories
+include_directories(
+    ${EXECTOS_SOURCE_DIR}/sdk/xtdk
+    ${XTLDR_FB_O_SOURCE_DIR}/includes)
+
+# Specify list of source code files
+list(APPEND XTLDR_FB_O_SOURCE
+    ${XTLDR_FB_O_SOURCE_DIR}/framebuf.c
+    ${XTLDR_FB_O_SOURCE_DIR}/gop.c)
+
+# Link bootloader executable
+add_executable(fb_o ${XTLDR_FB_O_SOURCE})
+
+# Add linker libraries
+target_link_libraries(fb_o libxtos libxtldr)
+
+# Set proper binary name and install target
+set_target_properties(fb_o PROPERTIES SUFFIX .efi)
+set_install_target(fb_o efi/boot/xtldr/modules)
+
+# Set module entrypoint and subsystem
+set_entrypoint(fb_o "XtLdrModuleMain")
+set_linker_map(fb_o TRUE)
+set_subsystem(fb_o efi_boot_service_driver)