Creation of Maven POM project and documentation.

This commit introduces a POM.xml file to allow the build of OpenCV and Java bundles using Maven.

An additonal directory has been created  'platforms/maven' to contain the POM and scripts used during the build process. An additional Markdown file is included to give instructions on how to build with Maven.

platforms/maven/scripts/deb_package_check

@@ -0,0 +1,42 @@
+#!/bin/bash
+###########################################################################################
+#
+# 		This script checks for the required Debian packages are installed
+# 		to build OpenCV.
+# Commandline parameters:
+# $@ - These are the names of the packages to check with 'dpkg'
+#
+# Returns:
+#   0 - All packages installed (success)
+#   1 - One or more packages missing (failure)
+#
+#   Kerry Billingham <contact (at) avionicengineers (d0t) com>
+#   20 April 2016
+#
+###########################################################################################
+red=$'\e[1;31m'
+green=$'\e[1;32m'
+end=$'\e[0m'
+check_message="Checking for 'dpkg'"
+dpkg -? &>/dev/null
+if [ $? -ne 0 ]; then
+    printf "%-80s%s\n" "${check_message}" "${red} MISSING.${end}"
+    exit 1
+else
+    printf "%-80s%s\n" "${check_message}" "${green} INSTALLED.${end}"
+fi
+
+declare -i packageMissing=0
+packageArray=( "$@" )
+for package in ${packageArray[@]}; do
+    check_message="Checking for package ${package}"
+    dpkg -s ${package} &>/dev/null
+    if [ $? -ne 0 ]; then
+        printf "%-80s%s\n" "${check_message}" "${red} MISSING.${end}"
+        packageMissing=1
+    else
+        printf "%-80s%s\n" "${check_message}" "${green} INSTALLED.${end}"
+    fi
+done
+
+exit $packageMissing