Cleanup in aisle # InchCoordProxyTests

• Sometimes we want to debug the first initialization, so now doing init of these in each test.  Removed anInchCoord and anInchCoordProxy ivars from InchCoordProxyTests.
• Also added testInchCoordInitialization and testInchCoordSurrogateInitialization tests, which break apart the alloc and init for InchCoord and a P001ModelSurrogate<InchCoordish>.
• Using classfor() and stringof() macros in a few places.
• test_steps added in a couple of places.
• `id<InchCoordish>` instead of `P001ModelSurrogate<InchCoordish>`, due to new adherence to NSObject protocol.
• Added missing release for allocInitedInchCoordProxy in testInchCoordSurrogateInitialization