Sync mbed-client-cli files with v0.4.0

[artokin]

Sync mbed-client-cli with master repository v0.4.0.

Description

Update mbed-client-cli to the v0.4.0 of master copy in https://github.com/ARMmbed/mbed-client-cli

Pull request type

[x] Fix
[ ] Refactor
[ ] Target update
[ ] Functionality change
[ ] Docs update
[ ] Test update
[ ] Breaking change

[artokin]

@jupe , @OPpuolitaival would you please review?

[OPpuolitaival]

@JuhPuur please test this locally

[0xc0170]

@JuhPuur please test this locally

Waiting for the final approval

[JuhPuur]

Tested with icetea MAC tests. No problems detected.

[cmonr]

Note: This PR is now a part of a rollup PR (#8686).

No further work is needed here, as once that PR is merged, this PR will also be closed and marked as merged.

If any more commits are made in this PR, this PR will remain open and have to go through CI on its own.