bump aap-lv2 to 0.4.0.

bump aap-lv2 to v0.3.0 final release.

bump aap-lv2 to the tagged v0.2.8 release.

bump aap-lv2 to 0.2.7 release.

bump aap-lv2 for 0.7.6 release. Update tests that at least compiles.

The tests still fail, but most likely due to insufficient support for plugin
services that contain more than one plugins. It's not regressive so we go on...

make use of libs.versions.toml for version refs.

bump aap-lv2 to final v0.2.4 release.

bump aap-lv2 to 0.2.1 and AGP to D-alpha07.

switch to new port properties. updated aap_metadata.xml based on new …

…generator.

really bump aap-lv2 to 0.1.6.