Allow trigger eventID to be used as input to TriggerBinding

[jmcshane]

Resolves #1427

Changes

Propagate eventID into the TriggerBinding evaluation to allow this value to be used in bindings. Adds TriggerContext object to template package to allow future additions to this data if other inputs are desired.

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Release Notes

Add eventID as input to TriggerBinding

[dibyom]

Nice! And welcome back!!
Can we document $(context.eventID) in the trigger template docs?

/approve

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[jmcshane]

@dibyom thanks! im planning to join the triggers wg tomorrow as well. long life story over the last 18 months or so, but I hope to make helpful contributions once again

ill update the docs

[jmcshane]

@dibyom docs updated

[dibyom]

@dibyom thanks! im planning to join the triggers wg tomorrow as well. long life story over the last 18 months or so, but I hope to make helpful contributions once again

looking forward!

And thanks for the quick update!

/lgtm