uplift to net8.0 adapt std plugin export sample file

[dubnemo]

@knelson-farmbeltnorth please consider merging this into your original converter function app and deploying to your Azure resource group. I have include a sample JSON used for testing the SII plugin.
I believe the file location error on framework-to-standard-type-mappings.json will be present as well.

The ISO plugin and the ADM representations have file location override get set methods, whereas it seems these are not available in the ADAPT Standard Plugin.

Something like the following ...

AgGateway.ADAPT.StandardPlugin.TypeMappingsFileLocation = System.IO.Path.Combine(executionContext.FunctionDirectory, ".", "framework-to-standard-type-mappings.json") ;
// not sure if this is needed
AgGateway.ADAPT.StandardPlugin.StandardDataTypesFileLocation =  System.IO.Path.Combine(executionContext.FunctionDirectory, ".", "adapt-data-type-definitions.json");
// other resources needed?

Another method besides executionContext is application variables, but the variable still needs to be public in the plugin.