Update BiasGelu fusion and related ops (#23518)
### Description
(1) Update BiasGelu fusion to support onnx Gelu-20
Since onnx Gelu-20 supports float/double/bf16/fp16, here we update
related ops to support these data types in CUDA and ROCm execution
providers:
(2) Add double support for Gelu/FastGelu op in CUDA/ROCm execution
provider
(3) Add BFloat16 support for Gelu ops in CUDA execution provider
(4) Add unit tests
(5) Update operator documents
### Motivation and Context
https://github.com/microsoft/onnxruntime/issues/23491
