prefer MDAL::split() char variant where possible

XMDF fixes (#492)

* rootGroup might contain dataset, load it if it is there

* read mesh from xmdf

* add scalar dataset group

* new tests for h5

* add info

* use buildUri and findMeshesNames to identify existing groups with Mesh Data ... in the same way UGRID driver does that

* fix test data

* file with multiple mesh datasets

* add h5 as extension for XMDF

* only store faces that have more than 2 vertices

* fix messages

Co-authored-by: Stefanos Natsis <uclaros@gmail.com>

* vertexDims size check

Co-authored-by: Stefanos Natsis <uclaros@gmail.com>

handle metadata in mike21 format (#486)

* handle metadata in mike21 format

* don't use macos-latest for ci

* update ubuntu used for docs ci

* add mike21 to docs index

* revert ff31e0e

Merge pull request #474 from lutraconsulting/fix-mike21-clangtidy

fix function names for clang-tidy in QGIS

fix clang tidy

update version in README.md

ver++ (#441)

Changes for release 1.0.0 (#434)

* retrieve exact behavior of FLO2D format before #424

* fix mingw build

* fix narrowing conversion

* ver++

* typo

mention to H2i spec

Release 0.9.4 (#408)

* Revert "H2i format (#400)"

This reverts commit b7e124f.

* ver++