[ocis] implement "Shared with others"

[exalate-issue-sync]

Description

spec in this PR: owncloud/libre-graph-api#112

User Stories

• As an Infinite Scale GraphApi consumer i need to collect data about all my outgoing shares to make access to my data transparent.

Value

Add NG Api to deprecate the existing OCS API

Acceptance Criteria

• add new "me/drive/sharedByMe" endpoint to the graph api
• the endpoint should return all shares where I am the Sharer
• the endpoint should NOT return shares by other users that I can change (e.g. because I am space admin)

Definition of ready

[ ] everybody needs to understand the value written in the user story
[ ] acceptance criteria has to be defined
[ ] all dependencies of the user story need to be identified
[ ] feature should be seen from an end user perspective
[ ] user story has to be estimated
[ ] story points need to be less then 20

Definition of done

• Functional requirements
  [ ] functionality described in the user story works
  [ ] acceptance criteria are fulfilled
• Quality
  [ ] code review happened
  [ ] CI is green
  [ ] critical code received unit tests by the developer
  [ ] automated tests passed (if automated tests are not available, this test needs to be created and passed
• Non-functional requirements
  [ ] no sonar cloud issues

[rhafer]

PR up for review #7239