Allow passing parameters for navigation signals

[kkostov]

When the Flutter SDK invokes the native SDK on each platform, in includes additional default parameters to describe the SDK version. For example, it would replace the following:

TelemetryDeck.SDK.name
TelemetryDeck.SDK.version
TelemetryDeck.SDK.nameAndVersion

and append the following:

TelemetryDeck.SDK.dartVersion

Currently, this is not possible for navigation related events as they don't have a parameters options (TelemetryDeck/FlutterSDK#22).

Please expand the API to allow parameters to be passed for such functions. As an alternative, the parameter overrides may also be provided as part of the start configuration (whichever makes more sense and feels better as an API).

This applies to all managed methods which generate signals internally.