[KT][ESIMD Sort] Code quality improvements

[dmitriy-sobolev]

These are the gaps which remain after the main review (#1257):

1. Separate declaration and definition (can be postponed until productization): See discussion: https://github.com/oneapi-src/oneDPL/pull/1257#discussion_r1407746163.
2. Use zip_iterator/zip_view instead of __rng_pack: See discusison: https://github.com/oneapi-src/oneDPL/pull/1257#discussion_r1407747819 and https://github.com/oneapi-src/oneDPL/pull/1257#discussion_r1407876412.
3. Consolidate trivial checks for the sequence length (see the checks like if (__keys_last - __keys_first < 2)).
4. Refactor __onesweep_memory_holder class. See discussion: https://github.com/oneapi-src/oneDPL/pull/1257#discussion_r1409124463.
5. Consider renaming __vector_store overloads to denote that they work with SLM. See discussion: https://github.com/oneapi-src/oneDPL/pull/1257#discussion_r1415838864.
6. Get rid of loops in __one_wg_kernel and use native functions or helper wrappers where possible. Avoid bitcasts to uint32_t. See discussion: https://github.com/oneapi-src/oneDPL/pull/1257#discussion_r1415678866
7. Make _ONEDPL_ESIMD_INLINE a genera macro to enforce inlining or replace it if there is an existing one. See discussion: https://github.com/oneapi-src/oneDPL/pull/1257#discussion_r1420753706