* adding initial draft for repo example test
* Adding more steps to the example_six_nodes test
* draft3 with adding step5 to the testcase
* adding test test_store_filter_interaction_with_six_nodes
* adding draft of test test_2_filter_nodes
* adding 2 tests
1- test_msg_not_stored_when_ephemeral_true
2- test_msg_stored_when_ephemeral_false
* fix review comments and add final changes for additional 3 tests
* Fix indentation issue
* Fix indentation issue
* Fixing review comments
* Enhancements based on review
* Adding changes to make tests pass with NODE_2= GO-WAKU
* Fix CI failure in test_store_filter_interaction_with_six_nodes
* Fixing CI failure for test test_store_filter_interaction_with_six_nodes
* Add wait after filter request to fix CI failure
* increase wait for CI failure
