(LK-C-2) Add controlled named 2/4-qubit gate (e.g. NCIsingXX) support to Lightning Kokkos

[josephleekl]

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---

Context:

Description of the Change:
This PR adds support for named controlled 2/4-qubit gates (e.g. Swap / IsingXX / SingleExcitation / Double Excitation). These are defined in BasicGateFunctor.hpp, and are applied through applyNC2Functor and applyNC4Functor defined in the same file.

Benefits:

Possible Drawbacks:

Related GitHub Issues:

[sc-76774]

[github-actions]

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Please edit .github/CHANGELOG.md with:

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[codecov]

Codecov Report

Attention: Patch coverage is 99.85955% with 1 line in your changes missing coverage. Please review.

Project coverage is 97.45%. Comparing base (a01b38a) to head (993a6f1).

Files with missing lines	Patch %	Lines
...nylane_lightning/lightning_kokkos/_state_vector.py	0.00%	1 Missing ⚠️

Additional details and impacted files

@@                  Coverage Diff                   @@
##           lk-control-gate-1Q     #953      +/-   ##
======================================================
+ Coverage               97.38%   97.45%   +0.06%     
======================================================
  Files                     215      215              
  Lines                   30840    31188     +348     
======================================================
+ Hits                    30033    30393     +360     
+ Misses                    807      795      -12     

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[josephleekl]

Missing code coverage due to new gates not tested, they are tested in #955 with the introduction of controlled qubitunitary.