Adding MethodRuleChain for chaining MethodRule classes.

Adding MethodRuleChain for chaining MethodRule classes. MethodRule was deprecated in version *junit 4.10*, but was undeprecated for version 4.11, so it seams reasonable that if you can order *TestRule* executions by using *RuleChain*, we can do the same for *MethodRules*. For this purpose MethodRuleChain has been implemented which works equal as *RuleChain*, but receiving a MethodRule instance.