Locating dll in different folder

#### Is your question related to a specific version? If so, please specify:
v3.1
#### What language does your question apply to? (e.g. C#, JavaScript, Java, All)
c#
#### Question
We are trying to get the IBM.Data.DB2.Core package working in azure function app. This library has some very specific ways it probes for the unmanaged dll.

It specifically looks in the Assembly.GetEntryAssembly folder + clidriver\bin first (D:\Program Files (x86)\SiteExtensions\Functions\3.0.13353\64bit)

Otherwise it looks for \lib in the Assembly location of IBM.Data.DB2.Core.dll, then tries \build\clidriver\bin from the \lib location (This is how they are handling the code running from the nuget package folder)

I can move the IBM.Data.DB2.Core.dll under bin in a lib folder, how can I get the host to probe that folder for dll's? I believe in a regular web application I could add an additionalProbingPaths to a runtimeconfig.json file. Is there a mechanism I am missing?

Start by reviewing the Azure Functions v3 host's assembly probing behavior for IBM.Data.DB2.Core and the unmanaged clidriver\bin location described in the issue. Compare that behavior with the proposed runtimeconfig.json additionalProbingPaths mechanism; done means identifying a supported configuration path or confirming that the host cannot probe the requested folder.

Written by the indexing model from the issue text.