Add syclBLAS gemv_batch and ger_batch

[ye-luo]

Proposed changes

The gemv_batch of oneMKL doesn't meet our requirement that alpha and beta are vectors. Add our version like cuBLAS_missing_functions. These are makeshift versions lacking tuning.

What type(s) of changes does this code introduce?

• New feature

Does this introduce a breaking change?

• No

What systems has this change been tested on?

sunspot

Checklist

• Yes. This PR is up to date with current the current state of 'develop'
• Yes. Code added or changed in the PR has been clang-formatted

[ye-luo]

@prckent

1. When I clean up DelayedUpdateCUDA and DelayedUpdateSYCL, theses tests will be activated. This will happen after I finished the batched version running with SYCL.
2. Added comments.

[ye-luo]

Test this please

[ye-luo]

Test this please