improvement: filters out special collections

[vrancurel]

Exclude collections starting with __
Nevertheless keeping explicit naming on collections
that are used directly by cloudserver even though they start with __
for sake of clarity

[bert-e]

Hello vrancurel,

My role is to assist you with the merge of this
pull request. Please type @bert-e help to get information
on this process, or consult the user documentation.

Status report is not available.

[bert-e]

Waiting for approval

The following approvals are needed before I can proceed with the merge:

• the author

• 2 peers

Peer approvals must include at least 1 approval from the following list:

• @bennettbuchanan

• @rachedbenmustapha

• @rahulreddy

[vrancurel]

@bert-e approve

[bert-e]

In the queue

The changeset has received all authorizations and has been added to the
relevant queue(s). The queue(s) will be merged in the target development
branch(es) as soon as builds have passed.

The changeset will be merged in:

• ✔️ development/8.1

The following branches will NOT be impacted:

• development/6.4
• development/7.4
• development/7.5
• stabilization/7.5.0

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the changeset has been merged. In the unlikely event that the changeset
fails permanently on the queue, a member of the admin team will
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[bert-e]

I have successfully merged the changeset of this pull request
into targetted development branches:

• ✔️ development/8.1

The following branches have NOT changed:

• development/6.4
• development/7.4
• development/7.5
• stabilization/7.5.0

Please check the status of the associated issue ZENKO-2045.

Goodbye vrancurel.