ENH: add experimental swig wrappers

Code/Wrappers/SWIG/CMakeLists.txt

Code/Wrappers/SWIG/Lua.i

Code/Wrappers/SWIG/Python.i

Code/Wrappers/SWIG/otbApplication.i

Code/Wrappers/SWIG/otbApplicationLuaMain.cxx

Testing/CMakeLists.txt

Testing/Java/CMakeLists.txt

Testing/Java/JavaSmoothingTest.java

Testing/Lua/CMakeLists.txt

Testing/Lua/LuaSmoothingTest.lua

Testing/Python/CMakeLists.txt

Testing/Ruby/CMakeLists.txt

Testing/Ruby/RubySmoothingTest.rb