Rework to build by autoconf/automake and new Debian scripts

Building in local machine:
    $ sh autogen.sh
    $ ./configure
    $ make
    $ sudo make install

Building Debian package:
    $ debuild -uc -us -b

Signed-off-by: Dongjin Kim <tobetter@gmail.com>
Change-Id: I76faa07c1586658d053a3e260ea231a19392f792

Makefile.am

@@ -0,0 +1,29 @@
+ACLOCAL_AMFLAGS = -I m4 ${ACLOCAL_FLAGS}
+
+pkgconfigdir = @pkgconfigdir@
+pkgconfig_DATA = libwiringpi2.pc
+
+SUBDIRS = wiringPi wiringPiD devLib gpio
+
+wiringpi_includedir = ${includedir}/wiringpi2
+wiringpi_include_HEADERS = \
+	devLib/ds1302.h \
+	devLib/font.h \
+	devLib/gertboard.h \
+	devLib/lcd.h \
+	devLib/lcd128x64.h \
+	devLib/maxdetect.h \
+	devLib/piFace.h \
+	devLib/piGlow.h \
+	devLib/piNes.h \
+	devLib/scrollPhat.h \
+	devLib/scrollPhatFont.h \
+	wiringPi/drcSerial.h \
+	wiringPi/max31855.h \
+	wiringPi/mcp23017.h \
+	wiringPi/pcf8591.h \
+	wiringPi/sn3218.h \
+	wiringPi/softPwm.h \
+	wiringPi/softTone.h \
+	wiringPi/wiringPi.h \
+	wiringPi/wiringSerial.h