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/RPI/Code/Source/RPI.Reflect/Buffer/BufferAsset.cpp

@@ -30,7 +30,8 @@ namespace AZ
             if (auto* serializeContext = azrtti_cast<SerializeContext*>(context))
             {
                 serializeContext->Class<BufferAsset>()
-                    ->Version(1)
+                    ->Version(2)
+                    ->Field("Name", &BufferAsset::m_name)
                     ->Field("Buffer", &BufferAsset::m_buffer)
                     ->Field("BufferDescriptor", &BufferAsset::m_bufferDescriptor)
                     ->Field("BufferViewDescriptor", &BufferAsset::m_bufferViewDescriptor)
@@ -80,5 +81,10 @@ namespace AZ
         {
             return m_poolType;
         }
+
+        const AZStd::string& BufferAsset::GetName() const
+        {
+            return m_name;
+        }
     } //namespace RPI
 } // namespace AZ