Plug-ins SDK

Here it is! The filters are now plug-ins. The plug-ins are dynamically loaded DLLs.

To create a custom filter that fits your needs use the SDK located in the CVS under renameit\Plug-ins\SDK folder.

To test it you can either compile the CVS version, or wait for the next release to come. I don't want to release it too fast, in order to check for bugs or improvements.