[proaudio] ir_lv2: needs update homepage, git repo, version

[Nikita Zlobin]

Looking for news about tap-plugins, i git to new place at github:
https://github.com/tomszilagyi/tap-plugins

Besides of new tap-plugins-1.0.0, same user has more recent version of
ir.lv2 - 1.3.3. Before this - only 1.2.3 is available.