Enable compilation with Eigen 5.0.0 (#6354)

Origin: upstream, https://github.com/PointCloudLibrary/pcl/commit/2d6929bdcd98beaa28fa8ee3a105beb566f16347

* Enable compilation with Eigen 5.0.0

* Fix Eigen3 package version requirement

* Additional change in PCLConfig.cmake.in

* Add version check in CMakeLists.txt

Add version check for Eigen3 to ensure compatibility.

* Add version check in PCLConfig.cmake.in

Gbp-Pq: Name 0006-Enable-compilation-with-Eigen-5.patch

Add x11 on linux when vtk 9.6+

Gbp-Pq: Name 0005-Add-x11-on-linux-when-vtk-9.6.patch

Boost 1.90 compatibility

Boost::system is no longer available

Gbp-Pq: Name 0004-Boost-1.90-compatibility.patch

Work around test failing on i386

Gbp-Pq: Name 0003-Work-around-test-failing-on-i386.patch

Use newly build libs when testing

This exports the LD_LIBRARY_PATH so the newly build libs will be used.

Gbp-Pq: Name 0002-Use-newly-build-libs-when-testing.patch

Fix PCL_ROOT path

Gbp-Pq: Name 0001-Fix-PCL_ROOT-path.patch

pcl (1.15.1+dfsg-4) unstable; urgency=medium

  * Team upload.
  * d/p/0006-Enable-compilation-with-Eigen-5.patch: New upstream patch
Closes: #1136316
[dgit import unpatched pcl 1.15.1+dfsg-4]

Import pcl_1.15.1+dfsg-4.debian.tar.xz

[dgit import tarball pcl 1.15.1+dfsg-4 pcl_1.15.1+dfsg-4.debian.tar.xz]

Import pcl_1.15.1+dfsg.orig.tar.xz

[dgit import orig pcl_1.15.1+dfsg.orig.tar.xz]