feat(db): Add companies and products database files and update package data inclusion

Author: kaburagisec

assets/db/companies.db renamed to onvif/db/companies.db

@@ -61,7 +61,7 @@ include = ["onvif*"]
 exclude = ["examples*", "tests*", "assets*"]
 
 [tool.setuptools.package-data]
-onvif = ["wsdl/*"]
+onvif = ["wsdl/*", "db/*"]
 
 [tool.black]
 line-length = 88