develop/examples/checkbox: 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/examples/checkbox/checkbox.asm

@@ -1,3 +1,9 @@
+; SPDX-License-Identifier: NOASSERTION
+;
+
+; Text encoded with Code Page 866 - Cyrillic
+
+
 ;Ž¯â¨¬¨§¨à®¢ ­­ë© ª®¬¯®­¥­â CheckBox (ˆá室­ë© ¢ à¨ ­â ®â Maxxxx32)
 ;Ž¯â¨¬¨§¨à®¢ ­ ¢ë¢®¤ áâப¨, ­ ¤¯¨á¨ ¤«ï CheckBox'a + ⥯¥àì ¯à¨ ¯à®¢¥àª¥ ­¥ ;¯à®¨á室¨â ¯®¤áç¥â ª®«-¢  ᨬ¢®«®¢ ¢ áâப¥
 ;Ž¯â¨¬¨§ æ¨ï ª®¬ ­¤.
@@ -23,7 +29,7 @@ use32                ;
                  ;    㪠§ â¥«ì ­  áâபã, ¢ ª®â®àãî § ¯¨á ­ ¯ãâì,
                  ;    ®âªã¤  § ¯ã饭® ¯à¨«®¦¥­¨¥
 ;------------------
-        include '..\..\..\..\macros.inc'
+        include '..\..\..\macros.inc'
         include 'check.inc'     ;¢ª«îç¨âì ä ©« check.inc
 ;        version_ch             ;­¥®¡å®¤¨¬ë© ¬ ªà®á ¤«ï ¢ª«î祭¨ï "áâ à®©" ¢¥àᨨ check_box
         version_ch1             ;­¥®¡å®¤¨¬ë© ¬ ªà®á ¤«ï ¢ª«î祭¨ï new ¢¥àᨨ check_box1