Create a span for plugin init

[BrynCooke]

Plugin log messages should be correlated for initialization.
Suggest that a span is created around the call to plugin init that contains the following attributes:

• Plugin name
• A version supplied by the state machine (probably a UUID).
  Doing this is a central location will give all plugins better contextual information on startup.

[BrynCooke]

Sorry, was on the wrong tab