use xrm-mock for Xrm v8 and v9 in one project

[romangobrey]

Hi,

Our app targets Dynamics v8, so we have bunch of tests for v8
At the same time we plan to migrate to v9, so in parallel we update the code and write tests against v9

We use aliases to add both xrm types (v8 and v9)

"@types/xrm8": "npm:@types/xrm@^8.2.8",
"@types/xrm9": "npm:@types/xrm@^9.0.70"

When initializing fake Xrm using XrmMockGenerator.initialize() clientContext in ContextMock can't be created via ClientContextMock because this mock object does not implement "isNetworkAvailable" property
Targeting just "@types/xrm8": "npm:@types/xrm@^8.2.8" because Xrm.Static does not have this "isNetworkAvailable" property in earlier version

Thank you!