implement support for start timer event

[jinjaghost]

Hi,

Do you have any plan to support start timer event ?

Regards,

[nitram509]

As of today not planned, yet.
PRs are always welcome ... but I would suggest and prefer to get the current rewrite done.

I did quite some refactorings while implementing the serialization feature - I hope to the good - and would consider adding new elements rather afterwards.