ATOM-15658 Better option of CreateCommonBuffer requires unique buffer name (#1133)

* ATOM-15658 Better option of CreateCommonBuffer requires unique buffer name
- Change the CreateCommonBuffer function to not require an unique  name by default.
- Remove the code for generating unique buffer names.
- Add buffer name to BufferAsset so it can be used for device object name instead of using asset file name.
- Change RPI::Buffer to use BufferName_AssetUuid as attachment id.

Gems/Atom/Feature/Common/Code/Source/Utils/GpuBufferHandler.cpp

@@ -40,13 +40,11 @@ namespace AZ
 
             if (m_bufferIndex.IsValid())
             {
-                AZStd::string bufferName = AZStd::string::format("%s_%" PRIXPTR, descriptor.m_bufferName.c_str(), reinterpret_cast<uintptr_t>(this));
-
                 uint32_t byteCount = RHI::NextPowerOfTwo(GetMax<uint32_t>(BufferMinSize, m_elementCount * m_elementSize));
                 
                 RPI::CommonBufferDescriptor desc;
                 desc.m_poolType = RPI::CommonBufferPoolType::ReadOnly;
-                desc.m_bufferName = bufferName;
+                desc.m_bufferName = descriptor.m_bufferName;
                 desc.m_byteCount = byteCount;
                 desc.m_elementSize = descriptor.m_elementSize;