vcap: Initial implementation

This UPM module captures a still frame from a Linux V4L device, such
as a USB webcam, and and then allows you to save it as a JPEG image
into a file.

The camera and driver in use must support streaming, mmap-able buffers
and must provide data in YUYV format.  This should encompass most
video cameras out there.  It has been tested with a few off the shelf
USB cameras without any problems.

Signed-off-by: Jon Trulson <jtrulson@ics.com>
Signed-off-by: Mihai Tudor Panu <mihai.tudor.panu@intel.com>

src/vcap/javaupm_vcap.i

@@ -0,0 +1,19 @@
+%module javaupm_vcap
+%include "../upm.i"
+%include "std_string.i"
+
+%include "vcap.hpp"
+%{
+    #include "vcap.hpp"
+%}
+
+%pragma(java) jniclasscode=%{
+    static {
+        try {
+            System.loadLibrary("javaupm_vcap");
+        } catch (UnsatisfiedLinkError e) {
+            System.err.println("Native code library failed to load. \n" + e);
+            System.exit(1);
+        }
+    }
+%}