[AL] Rename getGlobalIndices<ORDER>() functions.

Remove template specialization and name the functions
correspondingly.
Improve documentation.

[BL] Quicksort: Fix miscalculated second limit.

Easier git finding

Global index type

The preprocessor scheme follows the NumericsConfig scheme.

Check for equality of the types

This also breaks possible circular includes.

Renamed AssemblerLib::SerialVectorMatrixBuilder.

Update petsc cmake scripts

Make solver interface unique

Include ThirdParty/cmake-modules into the global cmake dir list.

Origin is https://github.com/jedbrown/cmake-modules.

Small fixes

This is automatic replacement with
ag '(?<!std::)size_t(?!\w)' --ignore-dir=ThirdParty -l | xargs perl -pi.bak -e  's/(?<!std::)size_t(?!\w)/std::size_t/g'

[MGT] Fix bug in GeoMapper::mapOnMesh().