Serializers.register() throws exception when models have same names

If you define a model with name already defined in another plugin you get an exception from https://github.com/JetBrains/rd/blob/1a04cdab1de6cb1b876ac7bc5750007a5238ca9c/rd-kt/rd-framework/src/main/kotlin/com/jetbrains/rd/framework/Serializers.kt#L54-L57
because `serializer.id` has default value based on model name
https://github.com/JetBrains/rd/blob/1a04cdab1de6cb1b876ac7bc5750007a5238ca9c/rd-kt/rd-framework/src/main/kotlin/com/jetbrains/rd/framework/Interfaces.kt#L96-L97

I had to rename my model