eigen 5.0.0

[cho-m]

• Added livecheck as upstream uses future release date (pre-release) and repeatedly retag until official release.
• Replaced homepage as I think tuxfamily is gone now.
• Disable BLAS libraries (previously disabled by default). Installing them will make break all bottle and not sure how useful it is

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Draft while doing a build-from-source dependents run since main part of Eigen is header-only so hard to detect breakages without rebuild. Especially after major release with 4 years of changes.

There is also a 3.4.1 if any dependents have issues.

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Build failures to follow up on:

• brew install --build-from-source dartsim
• pinocchio - pinocchio: fix build with eigen 5.0.0 #252411
• itk - itk: revision bump (eigen 5.0.0) #252408

Upstream PRs

• fcl - Directly include cassert wherever we use assert() flexible-collision-library/fcl#649
• lbfgspp - support building with Eigen3 5.0.0 yixuan/LBFGSpp#48
• sophus - Support building with Eigen3 5.0.0 strasdat/Sophus#558
• vowpal-wabbit - build: support building with eigen 5.0.0 VowpalWabbit/vowpal_wabbit#4720; vowpal-wabbit: update patch, apply open PR for eigen 5.0.0 #246900
• ifopt - Add direct cassert include for Eigen3 >= 5 ethz-adrl/ifopt#110
• alpscore - Support for Eigen3 5.0.0 ALPSCore/ALPSCore#651
• quantum++ - Support Eigen3 5.0.0 softwareQinc/qpp#191; Support Eigen3 5.0.0 softwareQinc/qpp#192
• votca - Support building with Eigen3 5.0.0 votca/votca#1189

Backported commits

• eigenpy - stack-of-tasks/eigenpy@3bd6b04
• g2o - RainerKuemmerle/g2o@ef80e64
• opencv - opencv/opencv@468de9b
• pagmo - esa/pagmo2@d0e7040
• pcl - PointCloudLibrary/pcl@2d6929b

Other changes

• orocos-kdl - update to c++14
• rtabmap - avoid FindEigen3 module
• spectra - update to c++14 and change test eigenvalues
• visp - workaround for Eigen3 CMake changes
• open-babel - workaround to find Eigen3

Eigen@3

• autodiff - uses some private APIs that changed in 5.0.0
• dynet - uses EIGEN_EMPTY_STRUCT_CTOR which isn't available in 5.0.0 - dynet: use eigen@3 #252342