LifecycleCoroutineScope's argument should be a CoroutineContext instead of MainImmediateCoroutineScope

[RBusarow]

The library is able to construct its own MainImmediateContext (SupervisorJob() + DefaultDispatcherProvider().let { it + it.mainImmediate }), so there's no need to require a full MainImmediateCoroutineScope argument. It is fine, though, to overload the constructor or factory so as to accept a CoroutineScope as well.

By taking any sort of CoroutineScope or CoroutineContext, it's easy to inherit any additional Elements while ensuring that the minimum requirements are there. So, for any CoroutineContext argument, its Elements will be re-used, except:

• 1. If a DispatcherProvider element isn't present, a DefaultDispatcherProvider will be added.
• 2. If a Job element isn't present, a SupervisorJob will be added.
• 3. If the ContinuationInterceptor does not match the one referenced by the [possibly new] DispatcherProvider.mainImmediate property, it will be updated to match.