Used inside vmaFindMemoryTypeIndexForBufferInfo, vmaFindMemoryTypeIndexForImageInfo when available.
Added these 2 functions to VmaVulkanFunctions structure.
Regenerated the docs.
Old values like VMA_MEMORY_USAGE_GPU_ONLY still work as before, for backward compatibility.
Updated documentation accordingly.
Introduced a concept of mappable and non-mappable allocations - with VMA_MEMORY_USAGE_AUTO* an intent to map has to be specified using VMA_ALLOCATION_CREATE_HOST_ACCESS*.
Added mapping hysteresis logic (internal class VmaMappingHysteresis, config macro VMA_MAPPING_HYSTERESIS_ENABLED) that prevents too many calls vkMapMemory/vkUnmapMemory back and forth.
Internal improvement in VmaBlockVector::AllocatePage to try to keep mappable and non-mappable allocations separate.
