Added CRAM_codecs document to describe the proposed CRAM3.1 codecs.

This also has the CRAM3.0 rANS codec in it.  I haven't yet removed
this from CRAMv3.tex

Author: jkbonfield

CRAM_codecs.tex

@@ -4,6 +4,7 @@ PDFS =	BCFv1_qref.pdf \
 	BCFv2_qref.pdf \
 	CRAMv2.1.pdf \
 	CRAMv3.pdf \
+	CRAM_codecs.pdf \
 	CSIv1.pdf \
 	SAMv1.pdf \
 	SAMtags.pdf \
@@ -17,13 +18,14 @@ pdf: $(PDFS:%=new/%)
 %.pdf: new/%.pdf
 	cp $^ $@
 
-new/CRAMv2.1.pdf diff/CRAMv2.1.pdf: CRAMv2.1.tex new/CRAMv2.1.ver
-new/CRAMv3.pdf   diff/CRAMv3.pdf:   CRAMv3.tex   new/CRAMv3.ver
-new/SAMv1.pdf    diff/SAMv1.pdf:    SAMv1.tex    new/SAMv1.ver
-new/SAMtags.pdf  diff/SAMtags.pdf:  SAMtags.tex  new/SAMtags.ver
-new/VCFv4.1.pdf  diff/VCFv4.1.pdf:  VCFv4.1.tex  new/VCFv4.1.ver
-new/VCFv4.2.pdf  diff/VCFv4.2.pdf:  VCFv4.2.tex  new/VCFv4.2.ver
-new/VCFv4.3.pdf  diff/VCFv4.3.pdf:  VCFv4.3.tex  new/VCFv4.3.ver
+new/CRAMv2.1.pdf    diff/CRAMv2.1.pdf:    CRAMv2.1.tex    new/CRAMv2.1.ver
+new/CRAMv3.pdf      diff/CRAMv3.pdf:      CRAMv3.tex      new/CRAMv3.ver
+new/CRAM_codecs.pdf diff/CRAM_codecs.pdf: CRAM_codecs.tex new/CRAM_codecs.ver
+new/SAMv1.pdf       diff/SAMv1.pdf:       SAMv1.tex       new/SAMv1.ver
+new/SAMtags.pdf     diff/SAMtags.pdf:     SAMtags.tex     new/SAMtags.ver
+new/VCFv4.1.pdf     diff/VCFv4.1.pdf:     VCFv4.1.tex     new/VCFv4.1.ver
+new/VCFv4.2.pdf     diff/VCFv4.2.pdf:     VCFv4.2.tex     new/VCFv4.2.ver
+new/VCFv4.3.pdf     diff/VCFv4.3.pdf:     VCFv4.3.tex     new/VCFv4.3.ver
 
 PDFLATEX = pdflatex