remove potential pattern match failure in favour of more helpful `die message`

initCall and unsafeInitCall in D.P.P.ManagedProcess.Internal.Types
were both vulnerable to pattern match failure when passed an
unresolvable Addressable. It is more helpful to the developer /
debugger to die with `unresolvableMessage addressable`.
s/_resolveOrDie/resolveOrDie/ and move it alongside Resolvable/Routable classes
Merge pull request #75 from BirdseyeSoftware/development

Remove potential pattern match failure for more helpful `die msg`