add(doc): Adding the list of e2e test cases (#50)

Added the list of automated and manual e2e test cases specific to zfs-localpv 

Signed-off-by: Aman Gupta <aman.gupta@mayadata.io>

docs/e2e-pipeline.md

@@ -0,0 +1,22 @@
+# E2e test cases for ZFS-LocalPV
+
+* ### Automated test cases into e2e-pipelines
+   https://gitlab.openebs.ci/openebs/e2e-nativek8s/pipelines/
+
+1. Validation of ZFS-LocalPV provisioner.
+2. Provision and Deprovision of ZFS-volume with Percona-mysql application (Both ext4 and zfs file system).
+3. Validation of ZFS-LocalPV snapshot.
+4. Validation of ZFS-LocalPV clone.
+
+* ### Manual test cases
+
+1. Check for the parent volume; it should not be deleted when volume snapshot is present.
+2. Check for the clone volume; it should contain only that snapshot content from which it is cloned.
+3. Test case for the scheduler to verify it is doing volume count based scheduling.
+4. Test case for zfs-volume properties change and validate that changes are applied to the corresponding volume. (Only compression and dedup properties as of now)
+5. Verify the data-persistence after draining the node.
+
+* ### Test cases planned for future
+
+1. Validation of volume resize support for ZFS-LocalPV.
+2. Add manually tested cases into the pipelines.