Proto commits in hotwatermorning/Terra

These 9 commits are when the Protocol Buffers files have changed:

Commit:a1b8860
Author:hotwatermorning
Committer:hotwatermorning

Support editing the vst3 search paths.

The documentation is generated from this commit.

Commit:55c637b
Author:hotwatermorning

[schema] fix missing entry in project.proto

Commit:dce47bd
Author:hotwatermorning
Committer:hotwatermorning

[app] support midi file importing

Commit:0c3d85e
Author:hotwatermorning

[vst3] enable Vst3Plugins to store/restore its state

Commit:1f6f1ba
Author:hotwatermorning

[gui] save positions of the main window and nodes.

Commit:0f98f88
Author:hotwatermorning

[project] implement project file

Commit:a9d1aab
Author:hotwatermorning

[plugin] refactor the PluginDescription schema

Commit:cef4c74
Author:hotwatermorning

[schema] fix package specifier

Commit:9afa6a8
Author:hotwatermorning
Committer:hotwatermorning

[schema] add plugin_desc.proto