Fluid Framework v2.0.0-internal.6.4.0

Upcoming: The type of the logger property/param in various APIs will be changing

• @fluidframework/runtime-definitions
  • IFluidDataStoreRuntime.logger will be re-typed as ITelemetryBaseLogger
• @fluidframework/odsp-driver
  • protected OdspDocumentServiceFactoryCore.createDocumentServiceCore's parameter odspLogger will be re-typed as ITelemetryLoggerExt
  • protected LocalOdspDocumentServiceFactory.createDocumentServiceCore's parameter odspLogger will be re-typed as ITelemetryLoggerExt

Additionally, several of @fluidframework/telemetry-utils's exports are being marked as internal and should not be consumed outside of other FF packages.

Some stack traces are improved

Some stack traces have been improved and might now include frames for async functions that weren't previously included.

tree2: Replace ValueSchema.Serializable with FluidHandle

Replace ValueSchema.Serializable with FluidHandle, removing support for arbitrary objects as tree values and preventing "any" type from Serializable from infecting TreeValue.

tree2: Restrict struct field names to avoid collisions with schema2 names

Struct field names are now restricted to avoid collisions with schema2 names.