apply patch 18 Australia Post Barcode

[SingingBush]

Add the Australia Post barcode generation from the Format control code and Sort code (DPID).
https://sourceforge.net/p/barcode4j/patches/18/
Created: 2009-01-02 by Antun Oreskovic

the zip contained following readme:

Hi Jeremias,

I believe that I have matched the code style, as you request. I took your RoyalBC code,
and converted to Austpost. All my changes were new classes, as I am not sure what the deal
is with changing existing code.

Obviously, I had to change;
org.krysalis.barcode4j.DefaultBarcodeClassResolver

by adding;
registerBarcodeClass("austpost",
"org.krysalis.barcode4j.impl.fourstate.AustPost", true);

Please review and let me know what you think. Any suggestions or changes you want made to it,
go right ahead, or let me know and I will make them.

I had to override some methods in the Fourstate classes, as the bars are reversed in
Austpost, then they are in Fourstate.

Additions;
org.krysalis.barcode4j.impl.fourstate.AustPost
org.krysalis.barcode4j.impl.fourstate.AustPostBean
org.krysalis.barcode4j.impl.fourstate.AustPostLogicImpl
These 3 you should recognise, very similar to RoyalMailCBC.
Just has some override methods for the bar calcs.

org.krysalis.barcode4j.impl.fourstate.FourStateAustPostLogicHandler
This class overrides the addbar, as the bars are reversed.

org.krysalis.barcode4j.impl.fourstate.AbstractAustPostLogicImpl
This class is the one that converts the Australian Format control and Sort code(DPID)
into the bar value representation. It does the Reed solomon calcs.

• Instructions for Use

To use this in XSL using FOP:

Set up variable,

<xsl:variable name="gbl-auspost-bc">

5.4mm
0.4mm
2.5
2mm
1.4mm
0.7mm

ignore
none

</xsl:variable>

fo:block
fo:instream-foreign-object
<xsl:copy-of select="barcode:generate($gbl-auspost-bc, $barval)"/>
</fo:instream-foreign-object>
</fo:block>

There are three customer barcode structures;
the inclusion of customer information being allowed in two bar types:

• Standard Customer Barcode 1 - length 37 bars, no bars of customer information
• Customer Barcode 2 - length 52 bars, 16 bars of customer information
• Customer Barcode 3 - length 67 bars, 31 bars of customer information

The $barval needs to be a concatenation of FFC and DPID.

FFC:

• Under Barcode 1 are;
  11 = Standard Customer Barcode
  45 = Reply Paid Barcode
  92 = Redirection Barcode

• Under Barcode 2 is;
  59 = Customer Barcode 2

• Under Barcode 3 are;
  62 = Customer Barcode 3
  44 = Currently Reserved

DPID:

• This is a unique 8A value of each address, supplied by Australia Post.
  Example: 39549554

Therefore, is you want a Standard Barcode 1, $Barval would be;
1139549554

This will return a blank value if DPID could not be converted.