[dlesage-nvidia]

Summary

Backport the NVCV header-notice correction to the public v0.14.0-beta release, preparing v0.14.1-beta.

This PR targets release_v0.14.x, created at the original v0.14.0-beta commit (d271c1c8788bf697431098b489060e85cf539943), so the backport does not revert changes from newer release lines.

Changes

• Replace stale proprietary restrictions with standard Apache-2.0 notices in Version.hpp, SymbolVersioning.hpp, and detail/CudaFwd.h; retain the existing Apache-2.0 SPDX license identifiers.
• Normalize copyright attribution while preserving the original starting years.
• Add deterministic regression coverage for all three headers.
• Update CV-CUDA and standalone NVCV to 0.14.1-beta, update the README badge, and add/index the patch-release notes.
• Preserve the original v0.14.0-beta release notes. Other licensing notices remain outside this backport.

Validation

• Regression: all three cases fail on the test-only commit and pass after the fix.
• Header bodies after the opening license comments remain byte-for-byte identical to v0.14.0-beta.
• C and C++ header syntax checks pass.
• CPU-only CMake version-header generation passes for CV-CUDA and standalone NVCV: 0.14.1-beta, patch version 1, API code unchanged at 14.
• Black, Flake8, SPDX, whitespace checks, and release-note parsing/index checks pass.
• Full CUDA build, GPU tests, and CI results have not been verified.

No release tag or GitHub release is created by this PR.