new: add capture_open/capture_close hooks

[mrgian]

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[FedeDP]

/hold

[FedeDP]

/approve
Changes LGTM thanks!
Put on hold to double check with @jasondellaluce about correct timing to merge this.

[poiana]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: FedeDP, mrgian

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[poiana]

LGTM label has been added.

Git tree hash: ae9739c3f1de4cfb03db68c37c71e63fb003c068

[FedeDP]

/unhold
Since this relies upon libs 0.18.1 we can go now :)