Update doGetDisaggIml 'imls' schema

In DisaggCOntroller schema for IMLs prepopulates from: "{\"PGA\": 0, \"SA0P2\": 0, \"SA1P0\": 0, \"SA2P0\": 0}", however the zero values cause the service to fail. Doublecheck that zero values are failing as expected (i.e. error service response with useful error message). Update schema values to 0.1 or something more UHRS-like.