Rename code128 to sdapscode128

The code128.tex file already exists on CTAN. While it is identical
(except for the license) it probably still makes sense to avoid a name
collision.

Author: benzea

Diff for: README

@@ -54,4 +54,4 @@ Created Files
  * sdapspdf.sty: Makes any SDAPS document into a PDF form
  * sdapsarray.sty: Base functionality for tabular like layouts
  * sdapslayout.sty: Base functionality for complex question layouts
- * code128.tex: Code 128 barcode renderer (re-licensed upstream copy)
+ * sdapscode128.tex: Code 128 barcode renderer (re-licensed upstream copy)

Diff for: build.lua

@@ -19,7 +19,7 @@ checkruns = 3
 checkengines = { "pdftex", "xetex" }
 
 demofiles       = { "arraydemo.tex", "testclassic.tex", "test.tex"}
-sourcefiles     = { "*.ins", "*.dtx", "code128.tex" }
+sourcefiles     = { "*.ins", "*.dtx", "sdapscode128.tex" }
 installfiles    = { "*.sty", "*.cls", "*.tex" }
 
 kpse.set_program_name ("kpsewhich")

Diff for: sdapsbase.dtx

@@ -94,7 +94,7 @@
 %    \begin{macrocode}
 \ExplSyntaxOff
 
-\input{code128}
+\input{sdapscode128}
 
 \RequirePackage{qrcode}