[TC-THNETDIR-2.2] YAML script needs to be updated with AddNetwork and RemoveNetwork command related test steps.

[KishokG]

Description:

TC-THNETDIR-2.2 test case YAML script needs to be updated with AddNetwork and RemoveNetwork command related test steps. As of now the script is not matching with the test plan.

Test plan Reference:

https://github.com/CHIP-Specifications/chip-test-plans/blob/master/src/cluster/thread_network_directory.adoc#tc-thnetdir-2-2-adding-removing-and-reading-thread-networks-with-dut_server

Script Reference:

https://github.com/project-chip/connectedhomeip/blob/master/src/app/tests/suites/certification/Test_TC_THNETDIR_2_2.yaml