[C#] Implement missing APIs (#26101)
This pull request adds new APIs and updates existing ones to improve
memory and device information handling in the ONNX Runtime C# bindings.
The most significant changes introduce methods for fetching memory info
and device info for session inputs/outputs, and add support for shared
allocators and synchronization streams. There are also several updates
and renamings for LoraAdapter delegates and related APIs.
### Memory and Device Info APIs
* Added `GetMemoryInfosForInputs`, `GetMemoryInfosForOutputs`, and
`GetEpDeviceForInputs` methods to `InferenceSession.shared.cs` to fetch
memory info and device info for session inputs/outputs. These methods
utilize new native delegates for retrieving memory and device
information.
* Introduced native delegates in `NativeMethods.shared.cs` for
`OrtSessionGetMemoryInfoForInputs`, `OrtSessionGetMemoryInfoForOutputs`,
and `OrtSessionGetEpDeviceForInputs`, and wired them up in the static
constructor.
[[1]](diffhunk://#diff-f9f2aaafc076365917de8ab96628da427d9dd0fd6a214fb9c266733f90d6fc73R530-R532)
[[2]](diffhunk://#diff-f9f2aaafc076365917de8ab96628da427d9dd0fd6a214fb9c266733f90d6fc73R1312-R1335)
### Shared Allocator and Synchronization Stream Support
* Added delegates and static fields for creating, getting, and releasing
shared allocators, as well as for creating and managing synchronization
streams (`OrtCreateSharedAllocator`, `OrtGetSharedAllocator`,
`OrtReleaseSharedAllocator`, `OrtCreateSyncStreamForEpDevice`,
`OrtSyncStream_GetHandle`, `OrtReleaseSyncStream`).
* Added delegate for copying tensors (`OrtCopyTensors`).
### LoraAdapter API Updates
* Renamed LoraAdapter-related delegates to use the `Ort` prefix
(`OrtCreateLoraAdapter`, `OrtCreateLoraAdapterFromArray`,
`OrtReleaseLoraAdapter`) and updated their usage throughout the
codebase.
[[1]](diffhunk://#diff-f9f2aaafc076365917de8ab96628da427d9dd0fd6a214fb9c266733f90d6fc73L699-R710)
[[2]](diffhunk://#diff-f9f2aaafc076365917de8ab96628da427d9dd0fd6a214fb9c266733f90d6fc73L1561-R1672)
[[3]](diffhunk://#diff-f9f2aaafc076365917de8ab96628da427d9dd0fd6a214fb9c266733f90d6fc73L1578-R1695)
### MemoryInfo Enhancements
* Added new delegates for creating memory info with more parameters
(`OrtCreateMemoryInfoV2`), and for querying device memory type and
vendor ID (`OrtMemoryInfoGetDeviceMemType`, `OrtMemoryInfoGetVendorId`).
[[1]](diffhunk://#diff-f9f2aaafc076365917de8ab96628da427d9dd0fd6a214fb9c266733f90d6fc73R594-R596)
[[2]](diffhunk://#diff-f9f2aaafc076365917de8ab96628da427d9dd0fd6a214fb9c266733f90d6fc73R1804-R1817)
[[3]](diffhunk://#diff-f9f2aaafc076365917de8ab96628da427d9dd0fd6a214fb9c266733f90d6fc73R1866-R1877)
### Minor API Documentation Update
* Clarified the lifetime of allocators in the documentation, noting they
can be explicitly unregistered.### Description
<!-- Describe your changes. -->
### Motivation and Context
<!-- - Why is this change required? What problem does it solve?
- If it fixes an open issue, please link to the issue here. -->
