demos/3detx60b: Post-SVN tidy

- Move source code from `trunk` into 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/build_all.bat

@@ -202,7 +202,7 @@ echo *
 echo Building demos
 echo *
 fasm demos\3dcube2\3dcube2.asm %BIN%\3d\3dcube2
-rem fasm demos\3detx60b\trunk\3detx60b.asm %BIN%\3d\3detx60b
+rem fasm demos\3detx60b\3detx60b.asm %BIN%\3d\3detx60b
 fasm demos\3dtcub10\trunk\3dtcub10.asm %BIN%\3d\3dtcub10
 cd demos\aclock\trunk\
 nasmw -t -f bin -o ..\..\..\%BIN%\demos\aclock aclock.asm

programs/demos/3detx60b/Tupfile.lua

@@ -1,5 +1,5 @@
 if tup.getconfig("NO_FASM") ~= "" then return end
-HELPERDIR = (tup.getconfig("HELPERDIR") == "") and "../../.." or tup.getconfig("HELPERDIR")
+HELPERDIR = (tup.getconfig("HELPERDIR") == "") and "../.." or tup.getconfig("HELPERDIR")
 tup.include(HELPERDIR .. "/use_fasm.lua")
 add_include(tup.getvariantdir())