onnxruntime

ad5b97b8 - 'LoadPluginOrProviderBridge' should load the library_path as absolute (#24587)

'LoadPluginOrProviderBridge' should load the library_path as absolute (#24587) ### Description `LoadPluginOrProviderBridge` is called when attempting to load a Plugin. It uses the passed `library_path` to attempt to load the Plugin as a `Provider` - using `ProviderLibrary` - to see if it can be treated as a 'ProviderBridge'. `ProviderLibrary` attempts to load the Provider by prefixing the path to the onnxruntime.dll. Plugins needn't be redistributed with OnnxRuntime, so the path to the Plugin _may_ be an absolute path, and if so `ProviderLibrary` fails. At the same time - however - `LoadPluginOrProviderBridge` needs to support OnnxRuntime-relative paths: As 'Providers' are migrated to 'Plugins', existing Providers should be usable as Plugins. To accommodate both scenarios, this PR: 1. Adds support to `ProviderLibrary` to be created with an absolute path. 2. Validates the path passed to `LoadPluginOrProviderBridge`; 1. if it is absolute, the same absolute path is passed to `ProviderLibrary` and `EpLibraryPlugin`. 2. if the path is not absolute, it is converted to an absolute path by prefixing the OnnxRuntime location, and the same path is passed to `ProviderLibrary` and `EpLibraryPlugin`. ### Motivation and Context This PR enables `LoadPluginOrProviderBridge` to be called with an absolute path to the Plugin, allowing it to be used as a 'ProviderBridge', or with an OnnxRuntime-relative path to the Plugin. --------- Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>