This fixes the build on Clang with `-stdlib=libc++` (if you disable -Werror as there are a lot of warnings)
```
/home/stephan/projects/Vulkan-Hpp/VulkanHppGenerator.cpp:781:28: error: no member named 'find_if_not' in namespace 'std'
auto endDigit = std::find_if_not( beginDigit, valueName.end(), []( std::string::value_type c ) { return isdigit( c ); } );
~~~~~^
/home/stephan/projects/Vulkan-Hpp/VulkanHppGenerator.cpp:1261:15: error: no member named 'find_if_not' in namespace 'std'
return std::find_if_not( vectorParams.begin(),
~~~~~^
/home/stephan/projects/Vulkan-Hpp/VulkanHppGenerator.cpp:2041:24: error: no member named 'find_if_not' in namespace 'std'
valid = ( std::find_if_not( destructorIt->second.params.begin(), destructorIt->second.params.end(), isConstructorCandidateParam ) ==
~~~~~^
/home/stephan/projects/Vulkan-Hpp/VulkanHppGenerator.cpp:2145:21: error: no member named 'find_if_not' in namespace 'std'
( std::find_if_not( sd.second.members.begin(), sd.second.members.end(), isMember ) == sd.second.members.end() );
~~~~~^
/home/stephan/projects/Vulkan-Hpp/VulkanHppGenerator.cpp:6047:17: error: no member named 'count_if' in namespace 'std'
( std::count_if( arrayIt->type.postfix.begin(), arrayIt->type.postfix.end(), []( char c ) { return c == '*'; } ) < 2 ) )
~~~~~^
5 errors generated.
```
Fixes#1175 together with the optional inclusion of vulkan_hash.hpp
Commands returning a VkResult with one or more error codes specified, getting no non-const pointer and zero or more vectors are combined into one function, no matter if it is specified to have one or more success codes.
Commands returning some value (not a VkResult), that get no non-const pointers, no input vectors, but zero or more const-pointers of any type are generalized into one function.
Commands returning a VkResult, with multiple success codes and at least one error code, that get no non-const pointers and zero or more input vectors are generalized into one function.
Commands returning a VkResult, with a single success code and at least one error code, that get no non-const pointers and zero or more input vectors are generalized into one function.
Commands returning a VkResult with a single success- and multiple error codes, that get no non-const pointers and no vectors, and any number of const pointers is generalized to support const void pointer as well, replacing those arguments by const& on a templated type.
Commands returning a VkResult with a single success- and multiple error codes, that get no non-const pointers and no vectors, just one const pointer is generalized to support a const void pointer as well, replacing that argument to a const& on a templated type.
