Added development files

This adds a bunch of files which I intended to make available but didn't geta round to. They may be useful to people trying to understand the brother data format or extend the knowledge of these formats.

Signed-off-by: Steve Conklin <steve@conklinhouse.com>

README

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+These files are related to the Brother KH-930E knitting machine, and other similar models.
+
+The files in the top directory are the ones used for the knitting project that Becky Stern and Limor Fried did:
+
+http://blog.makezine.com/archive/2010/11/how-to_hacking_the_brother_kh-930e.html
+http://blog.craftzine.com/archive/2010/11/hack_your_knitting_machine.html
+
+The subdirectories contain the following:
+
+* docs:
+
+  Documentation for the project, including the data file format information and
+  scans of old manuals which are hard to find.
+
+* experimental:
+
+  Some never-tested code to talk to a Tandy PDD-1 or Brother disk drive.
+
+* file-analysis:
+
+  Various scripts used to reverse-engineer the brother data format, as well as some spreadsheets used.
+  These may or may nor work, but may be useful for some.
+
+* test-data:
+
+  A saved set of data from the PDDemulator, with dicumentation abotu what's saved in each memory location.
+  A good way to play with the file analysis tools, and may give some insight into the reverse engineering
+  process.
+
+* textconversion
+
+  The beginnings of work to convert text to a knittable banner.
+
+--------------------------
+
+The Brother knitting machines can save data to an external floppy disk drive, which connects to the machine using a serial cable.
+
+These external floppy drives are difficult to find and expensive, and the physical format of the floppy disks is different than 3.25" PC drives.
+
+The program PDDemulate acts like a floppy drive, and runs on linux machines, allowing you to save and restore data from the knitting machine.
+
+Most of the formatting of the saved data files has been figured out, and the tools used to do that are also in this repository.
+
+There is also an example of how to generate a text banner in a .png image file, 
+which may be useful to some.
+
+The work that Steve Conklin did was based on earlier work by John R. Hogerhuis.
+
+This extended by Becky and Limor and others, including Travis Goodspeed:
+
+http://travisgoodspeed.blogspot.com/2010/12/hacking-knitting-machines-keypad.html

docs/README

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+This is documentation for the brother knitting machine projects that I have been working on.
+There are some copyrighted manuals included in here, but they are difficult to find and for
+old and mostly obsolete equipment. I hope that no one minds.