add proxyBackbeatApis to the general cloudserver client

[SylvainSenechal]

ISSUE: CLDSRVCLT-9

[bert-e]

Hello sylvainsenechal,

My role is to assist you with the merge of this
pull request. Please type @bert-e help to get information
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name	description	privileged	authored
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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

[SylvainSenechal]

/approve

[bert-e]

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

• ✔️ development/1.0

Please check the status of the associated issue CLDSRVCLT-9.

Goodbye sylvainsenechal.

The following options are set: approve