[processor/interval] Allow bypassing cumulative sums / counters

[tsawada]

Component(s)

processor/interval

Is your feature request related to a problem? Please describe.

It seems that the interval processor always process "Monotonically increasing, cumulative sums" metrics (collected with ObservableLongCounter)
It'd be great if the interval process can be configured to batch only the histograms.

Describe the solution you'd like

Add an option to bypass cumulative sums

Describe alternatives you've considered

This can be achieved by splitting the pipeline and using the filter processor, but I think having this option in the interval processor is useful.

Additional context

No response

[github-actions]

Pinging code owners:

• processor/interval: @RichieSams @sh0rez @djaglowski

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