Reader code doesn't run on Rpc now if a valid writer can not be found
In future PR write and read functions should be generated together as they share most of the same checks
* replacing assert with haserror
* adding IsSuccess and HasWarning functions
* using IsSuccess
* checking weaverWarnings empty in success
* using HasWarning
* replacing asserts missed by regex
* fixing typo
* adding HasNoErrors function to be used when tests only have warnings
* fixing typo
* making fields public to stop warnings
* simplifying more test files
* adding generated test for other baseclasses
* removing errors when attribute is not in networkbehaviour
* temp weaver tests
* updating weaver tests for monobehaviour
* adding weaver tests for non-networkbehaviour
* moving where serverclient attributes are processed
* removing un-used code
* regenerate tests
* adding check for no connections
Dont need to run Server Update if there are no connections
* adding toggle to disable skip
* formatt
* removing skipUpdateIfNoConnections check, and merging if checks
* removing extra line
* adding tests for NoConnections
* replacing isHeadless with isServerBuild
* renaming startOnHeadless
* fixing isServerBuild bool
* making property a field instead
* replacing isServerBuild for #if UNITY_SERVER
* fixing comment and removing extra lines
* removing system from System.Obsolete
* renaming to autoStartServerBuild
* adding assert to make sure transport is set
this helps people who want to connect without using networkmanager
* moving Transport.activeTransport to setup
* replacing Substitute.For for addComponent
Can't used Substitute for monobehaviours as they will still be null with unity equals
* weaver test for abstract methods
* doing nothing is method is abstract
* not calling base if it is abstract
* adding tests for message to make sure they work
