Contributed by Wim Lewis, add support for checking device
signatures in detail (patch #4924 and #4925)
* avrdude.conf.in: Add signatures
* avrpart.c: Set default signature
* avrpart.h: Variable for signature
* config_gram.y: More signature reading
* lexer.l: Define that signatures exist
* main.c: Read signatures and check them against hardware
git-svn-id: svn://svn.savannah.nongnu.org/avrdude/trunk@573 81a1dc3b-b13d-400b-aceb-764788c761c2