Update package version number

GitHub Action update

Maintenance update

- Add default values to avoid compiler warning.
- Update with Unity 2019.1.

Merge pull request #7 from asus4/fix_blank_typetag

Append "," type tag into an address only OSC

Make OscMaster class public

Merge pull request #5 from keijiro/fix-threading

Add mutex to data queue in OscEventReceiver

Add PackageTool