Create Protobuf Plugin for automatically generating native API stubs (#633)

* Create Protobuf Plugin for automatically generating native API stubs

* Format

* Delete api.proto

* Cleanup, use no_delay conditionally

* Updates

* Update

* Lint

* Lint

* Fixes

* Camera

* CustomAPIDevice

* Fix negative VarInt, Add User-defined services arrays

* Home Assistant Event

* Fixes

* Update custom_api_device.h

script/ci-custom.py

@@ -28,6 +28,7 @@ EXECUTABLE_BIT = {
     s[3].strip(): int(s[0]) for s in lines
 }
 files = [s[3].strip() for s in lines]
+files = list(filter(os.path.exists, files))
 files.sort()
 
 file_types = ('.h', '.c', '.cpp', '.tcc', '.yaml', '.yml', '.ini', '.txt', '.ico', '.svg',