introduce autotools libarmep

Signed-off-by: Andy Green <andy.green@linaro.org>

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+Building notes
+2012-10-06  Andy Green <andy.green@linaro.org>
+
+These sources are GPL2, you can find them here
+
+http://git.linaro.org/gitweb?p=tools/arm-probe.git;a=summary
+
+
+This probject uses GNU autotools.
+
+Make sure you have 
+
+ - libtool
+ - automake
+ - autoconf
+
+packages installed.
+
+To initially configure the sources for your system, or if you change the
+autotools-related content:
+
+ - ./autogen.sh
+ - ./configure
+
+You might want to use "./configure --prefix=/usr", which will later install
+the built libraries and apps in /usr/bin, /usr/lib etc instead of the
+default /usr/local/...   If you want to do that, notice that on 64-bit systems
+(eg, on Fedora...) you will also need to give --libdir=/usr/lib64 which is
+otherwise taken care of automatically.
+
+afterwards, you can make as usual with
+
+ - make
+ - sudo make install
+
+from the top level.
+
+
+* libarmep is a library wrapping all of the access and protocol complexity
+    of dealing with one or more arm energy probes
+
+* arm-probe is the commandline utilty for the arm probes which issues
+    output on stdout and adds columns on to stdin if anything is piped
+    there.  The tabbed ascii format is compatible with gnuplot.  Actually
+    the code for this is very small since libarmep copes with the dirty
+    business.
+
+