[sample_consensus] Migrated the SSE and AVX implementations of countWithinDistance to RISC-V RVV 1.0

Hello everyone,

I've recently been working on some CPU architecture-related contributions for PCL. Referring to https://github.com/PointCloudLibrary/pcl/pull/3519, I have migrated the SSE and AVX implementations of countWithinDistance to RISC-V RVV 1.0, implementing countWithinDistanceRVV. The code repository is available at:

https://github.com/CelestialMelody/pcl/tree/feature/rvv10

The submitted content includes the following:

1. Chinese documentation recording the environment setup, compilation, implementation, and testing processes. These documents are not intended for merging into PCL (I can provide English translations if needed):
   RISCV Development Environment Setup
   PCL Cross-Compilation Guide for RISC-V
   RVV Implementation Supplementary Notes
   RVV Implementation: Optimizing countWithinDistance for RANSAC Models
   RVV Implementation: 3D Vector Acute Angle Calculation (getAcuteAngle3D & acos)

2. Migration of PR #3519 (SSE/AVX code): Implemented countWithinDistanceRVV for the Plane, NormalPlane, Circle2D, and Sphere models.

3. Testing:
   Test Documentation
   Test Implementation

Can I submit a PR? Do I need to create a new branch in my repository and only submit the added code parts?

Start by reviewing PR #3519 and the feature/rvv10 branch, especially the sample_consensus implementation and test-rvv/sample_consensus tests. Read the linked RVV documentation and confirm the expected contribution process with maintainers; done means an accepted RVV implementation and corresponding tests that meet PCL requirements.