eigenpyConfig.cmake: find absolute library paths for all required libs

As cmake expects absolute library paths, while pkgconfig provides lib names only (together with
LIBRARY_DIRS), one needs to find the full library path.

This fixes 7854c0fc.

Update Quaternion class with more constructors

cmake: sync submodule

Add CMake config using pkg-config internally

- MoveIt cannot make a new release right now with our bugfix due to people constraints
- We cannot roll back due to project constraints
- This adds a cmake config that internally uses the pkg-config. This will be replaced in the future with one with proper CMake targets

cmake: sync submodule

Fix issue for pkg-config export of the lib

Improve support of CMake >= 3.0.0

Update package.xml to fix unstable build warnings

Follow-up fix for PYTHON_EXT_SUFFIX

Fix MSVC compile errors

...\eigenpy\src\eigenpy.cpp : fatal error C1128:
number of sections exceeded object file format limit: compile with /bigobj

quaternion: fix exposure of toRotationMatrix

Update cmake