Catalog listing and enhanced versions of various BOOM items from ben-wpan/bom.

- boom/dist/dk/dk-catq.pl: new - query the Digi-Key catalog for a list of
  items
- boom/dist/dk/dk-db.pl: enhanced - never generate more than 1000 queries
  per wget run (to keep argv from getting too long)
- boom/dist/dk/panasonic-erj.catq, boom/dist/dk/stackpole-rmcf.catq: query
  scripts for dk-catq.pl
- boom/lib/e12.inc: enhanced - added Rxx and Rxxx codes
- boom/manu/panasonic/panasonic.gen: enhanced - added decoding for all ERJ
  series resistors listed at Digi-Key
- boom/manu/stackpole/: (new) part number decoder for RMCF series resistors

boom/dist/dk/Makefile

@@ -0,0 +1,27 @@
+CACHE = query.data
+EQUS = panasonic-erj stackpole-rmcf
+
+.SUFFIXES:		.catq .equ
+
+all:			db/digi-key.dsc db/digi-key.inv
+
+$(CACHE):		db/digi-key.equ
+			awk '/^#END/ { exit } /^DIGI-KEY / { print $$2 }' $< | \
+			  perl ./dk-db.pl query \
+			  `[ -r $(CACHE) ] && echo '' -i $(CACHE)` >_$@ || \
+			  { rm -f $@ _$@; exit 1; }
+			mv _$@ $@
+
+db/digi-key.equ:	$(EQUS:%=db/%.equ)
+			cat $^ >$@ || { rm -rf $@; exit 1; }
+
+db/digi-key.dsc:	$(CACHE)
+			perl ./dk-db.pl dsc $< >$@ || \
+			  { rm -f $@; exit 1; }
+
+db/digi-key.inv:	$(CACHE)
+			perl ./dk-db.pl inv $< >$@ || \
+			  { rm -f $@; exit 1; }
+
+.catq.equ:
+			perl ./dk-catq.pl $< >$@ || { rm -rf $@; exit 1; }