moved all third-party lib to separate folder

thirdparty/libcsp/src/CMakeLists.txt

@@ -0,0 +1,27 @@
+target_sources(${LIB_CSP_NAME} PRIVATE
+	csp_bridge.c
+	csp_buffer.c
+	csp_conn.c
+	csp_crc32.c
+	csp_debug.c
+	csp_dedup.c
+	csp_endian.c
+	csp_hex_dump.c
+	csp_iflist.c
+	csp_io.c
+	csp_port.c
+	csp_promisc.c
+	csp_qfifo.c
+	csp_route.c
+	csp_service_handler.c
+	csp_services.c
+	csp_sfp.c
+)
+
+add_subdirectory(drivers)
+add_subdirectory(crypto)
+add_subdirectory(interfaces)
+add_subdirectory(rtable)
+add_subdirectory(transport)
+add_subdirectory(arch)
+