test(merge-tree): Add tests for obliterate endpoint expansion

[jzaffiro]

Add unit tests for the upcoming feature of obliterate endpoint expansion. These will be checked in skipped until the implementation is complete.

AB#8765

[azure-boards[bot]]

✅ Successfully linked to Azure Boards work item(s):

• Task 8765

[azure-pipelines[bot]]

There was an error handling pipeline event 1525908d-7aea-4b4b-9749-0dad00a51b35.

[msfluid-bot]

⯅ @fluid-example/bundle-size-tests: +245 Bytes

Metric Name	Baseline Size	Compare Size	Size Diff
aqueduct.js	457.99 KB	458.02 KB	⯅ +35 Bytes
azureClient.js	555.23 KB	555.28 KB	⯅ +49 Bytes
connectionState.js	680 Bytes	680 Bytes	■ No change
containerRuntime.js	258.67 KB	258.68 KB	⯅ +14 Bytes
fluidFramework.js	406.94 KB	406.95 KB	⯅ +14 Bytes
loader.js	134.04 KB	134.05 KB	⯅ +14 Bytes
map.js	42.13 KB	42.14 KB	⯅ +7 Bytes
matrix.js	146.41 KB	146.42 KB	⯅ +7 Bytes
odspClient.js	523.37 KB	523.42 KB	⯅ +49 Bytes
odspDriver.js	97.55 KB	97.57 KB	⯅ +21 Bytes
odspPrefetchSnapshot.js	42.61 KB	42.62 KB	⯅ +14 Bytes
sharedString.js	163.13 KB	163.14 KB	⯅ +7 Bytes
sharedTree.js	397.45 KB	397.46 KB	⯅ +7 Bytes
Total Size	3.3 MB	3.3 MB	⯅ +245 Bytes

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Baseline commit: ac3948a7e18981f3fe8496c296d20443f9ce3d62

Generated by :no_entry_sign: dangerJS against 39f7dd5d384ba5e3705030c6b53ccc584711f89f