Add CLI test for activation-key copy
Adresses #1704

Test results
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@Test: Copy Activation key for all valid Activation Key name ... ok
@Test: Copy Activation key for all valid Activation Key name ... ok
@Test: Copy Activation key for all valid Activation Key name ... ok
@Test: Copy Activation key for all valid Activation Key name ... ok
@Test: Copy Activation key for all valid Activation Key name ... ok
@Test: Copy Activation key for all valid Activation Key name ... ok

Added second test to copy an activation key by its name
Results
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@Test: Copy Activation key by passing name of parent ... ok