Clang tidy 1

[EJainDev]

This implements the following performance related clang-tidy checks into the codebase and removes unnecessary lambda capture of V in xgemv.hpp:
[performance-unnecessary-copy-initialization]
[performance-unnecessary-value-param]
[performance-faster-string-find]
[performance-unnecessary-copy-initialization]

[CNugteren]

After merging this in there are some compilation errors on master:
https://github.com/CNugteren/CLBlast/actions/runs/19757215493
Not sure if this is related, not sure why this didn't show up here. I can investigate later, but if you have time @EJainDev feel free to look into it.

[EJainDev]

@CNugteren I can’t see any direct things that would cause this because the PR did not affect the samples, which are throwing the error. Also, the error is only the clang + macOS run when compiling the samples. From what I see, there are 2 possible errors:

1. macOS 13 is being deprecated which might have something to do with it
2. The OpenCL C++ bindings recently changed to take references instead of pointers for non-optional arguments, which should be updated regardless. But there is no release containing this yet.