pylonsrc: merge Basler Pylon plugin from gst-pylonsrc

Merged from https://github.com/zingmars/gst-pylonsrc

This includes some changes to include running gst-indent, and
modification to allow it to compile with Visual Studio 2012/VC11.

sys/pylon/CMakeLists.txt

@@ -0,0 +1,31 @@
+set (SOURCES
+  gstpylonsrc.c
+  )
+    
+set (HEADERS
+  gstpylonsrc.h)
+
+include_directories (AFTER
+  ${GSTREAMER_INCLUDE_DIR}/..
+  ${PYLON_INCLUDE_DIR}
+  )
+
+set (libname libgstpylon)
+
+add_library (${libname} MODULE
+  ${SOURCES}
+  ${HEADERS})
+
+target_link_libraries (${libname}
+  ${GLIB2_LIBRARIES}
+  ${GOBJECT_LIBRARIES}
+  ${GSTREAMER_LIBRARY}
+  ${GSTREAMER_BASE_LIBRARY}
+  ${GSTREAMER_VIDEO_LIBRARY}
+  ${PYLON_LIBRARIES}
+  )
+
+set (pdbfile "${CMAKE_CURRENT_BINARY_DIR}/\${CMAKE_INSTALL_CONFIG_NAME}/${libname}.pdb")
+install (FILES ${pdbfile} DESTINATION lib/gstreamer-1.0 COMPONENT pdb)
+install(TARGETS ${libname}
+  LIBRARY DESTINATION lib/gstreamer-1.0)