[linux-audio-dev] LADSPA 2 example plugin changes

http://plugin.org.uk/ladspa2/ First of all, I realised I was being cheeky by adding a feature I wanted (units), while refusing to consider anyone elses! So, I removed the units property from the Amp plugin. I'm happy to consider it a testcase and I will make a schema for it and start using it when/if LADSPA2 gets OKd by the community. I made 2 actual ABI changes: The path of the directory/bundle is passed to instantiate(). This is neccessary to make it actually useful. It could have been passed to other methods, but that seemed most appropriate. For some potential features, like Fons' polyphonic control ports, it's hard for the plugin to detect wether the host is using the feature or not. I added an array of URIs to instantiate() that lets the host tell the plugin what hints etc. it supports. The plugin can then refuse to instantiate or fall back if it doesn't like the featureset. I also added some (silly) scale points to the Amp plugin, just to show how it's done, and I added translations to some of the strings, to show how that's done. - Steve