develop/libraries/box_lib: Post-SVN tidy

- Move source code from `trunk` into program root directory.
- Update build files and ASM include paths.
- Note: Line endings standardised from `CRLF` > `LF`, so best to view diffs with whitespace changes hidden.

programs/develop/info3ds/info3ds_u.asm

@@ -1,3 +1,9 @@
+; SPDX-License-Identifier: NOASSERTION
+;
+
+; Text encoded with Code Page 866 - Cyrillic
+
+
 use32
 	org 0
 	db 'MENUET01' ;<3B><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>. <20>ᯮ<EFBFBD><E1AFAE>塞<EFBFBD><EFA5AC><EFBFBD> 䠩<><E4A0A9> <20>ᥣ<EFBFBD><E1A5A3> 8 <20><><EFBFBD><EFBFBD>
@@ -11,7 +17,7 @@ include '../../KOSfuncs.inc'
 include '../../develop/libraries/libs-dev/libimg/libimg.inc'
 include '../../load_img.inc'
 include '../../load_lib.mac'
-include '../../develop/libraries/box_lib/trunk/box_lib.mac'
+include '../../develop/libraries/box_lib/box_lib.mac'
 include '../../develop/libraries/TinyGL/asm_fork/opengl_const.inc'
 include 'lang.inc' ; Language support for locales: ru_RU (CP866), en_US.
 include 'info_fun_float.inc'