Sync with Armadillo 15.2-rc1

[eddelbuettel]

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[Copilot]

Pull Request Overview

This PR synchronizes RcppArmadillo with Armadillo 15.2-rc1, updating the version from 15.0.2-2 to 15.1.99-1. The update includes significant internal refactoring and new features.

Key changes:

• Addition of the rande() function for exponential distribution random number generation
• Introduction of Mat_noalias and SpMat_noalias wrapper classes for optimized matrix operations
• Enhanced constructor overloads for Mat, Col, and Row classes to improve performance
• Updates to multiple operator implementations to utilize the new noalias optimization pattern

Reviewed Changes

Copilot reviewed 136 out of 136 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
inst/include/current/armadillo_bits/arma_version.hpp	Version updated to 15.2-RC1
inst/include/current/armadillo_bits/fn_rande.hpp	New file implementing exponential distribution RNG
inst/include/current/armadillo_bits/arma_rng.hpp	Added rande template struct for exponential distribution
inst/include/current/armadillo_bits/Mat_bones.hpp	Added Mat_noalias class and new constructor overloads
inst/include/current/armadillo_bits/SpMat_bones.hpp	Added SpMat_noalias class definition
inst/include/current/armadillo_bits/unwrap.hpp	Updated quasi_unwrap<subview_row> and partial_unwrap<subview_row> for better memory handling
inst/include/current/op_/glue_ files	Added apply() overloads accepting Mat_noalias and SpMat_noalias parameters
inst/include/current/armadillo_bits/fn_*.hpp	Changed many arma_inline to inline for various functions
DESCRIPTION, configure.ac, ChangeLog, inst/NEWS.Rd	Version and metadata updates

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