Patch: deprecate transitions for state overrides that accept state args

• Deprecate transition functions for state overrides that also accept state args as these cannot be supported
• Add HSM_DEPRECATED macro and use them to deprecate three functions that were deprecated in comments
• Move GenerateOnEnterArgsFunc and related code below State definition to fix undefined class usage when compiling with gcc and clang
• Assert that variadic args OnEnterArgs func is invoked on the expected type of state at runtime
• Always store RTTI info on StateTypeId, whether using C++ RTTI or custom
• Delete outdated "sample_1_basic"

Better StateArgs (C++14)

• Remove std::ref() wrapping immediate string state args in book samples as they are no longer required
• Implement MSVC-specific workaround so that we can pass immediate strings as state args
• Optimize case of transition for state override with no state args
• Add support for state overrides with state args
• Fix book samples to work with new state args mechanism
• Improve StateArgs mechanism by making use of C++11 features
• Enable C++14 support for gcc and Clang
• Simplify .gitignore