Adds a package for
[libSplash](https://github.com/ComputationalRadiationPhysics/libSplash),
a high-level library around serial and parallel HDF5 for regular
grids and particle data sets.
```
libSplash aims at developing a HDF5-based I/O library for HPC
simulations. It is created as an easy-to-use frontend for the
standard HDF5 library with support for MPI processes in a cluster
environment. While the standard HDF5 library provides detailed
low-level control, libSplash simplifies tasks commonly found in
large-scale HPC simulations, such as iter- ative computations
and MPI distributed processes.
```
libSplash is a dependency for [PIConGPU](http://picongpu.hzdr.de),
an open-source, many-core, fully-relativistic particle-in-cell
code and further software developed at
[Helmholz-Zentrum Dresden - Rossendorf](https://www.hzdr.de).
libSplash builds in two versions, one without MPI writing
domain-decomposed posix-style HDF5 files per process and one
(default) with MPI and MPI-I/O ("parallel HDF5") support
aggregating into a single file per MPI communicator.
libSplash is used in conjunction with
[openPMD](http://openPMD.org), see also
[github.com/openPMD/](https://github.com/openPMD/).
This PR updates the ADIOS package.
**Changes:**
- add latest stable release `1.10.0`
- add previous versions (hashes)
- add default license header
- add build options (shamelessly taken from HDF5 package)
- add validation for excisting FC (as in HDF5) and make optional
- handle mxml dependency correctly (not required in 1.10.0+)
- add `CFLAGS=-fPIC` to build shared (python) libs in ADIOS' lib
- remove `-DMPICH_IGNORE_CXX_SEEK` since it is normally not required
- remove `MPICC/CXX?FC` since `--with-mpi` just performs well
- add transforms:
- `zlib`: useful (optional) default
- `szip`: optional (compile often broken)
- add transports that are not as performant as the `.bp` format:
- `hdf5`: non-default
- `netcdf`: non-default, close#1610
* opencoarrays: new package
* opencoarrays: remove tests from install due to (unimportant) failures in some configurations
* opencoarrays: fix flake8 errors
- use two empty lines before `class`
- change version numbering scheme for packages, use `url_for_version` to make things work
- specify dependency types
- add comment about temporarily moved download location
- update two packages to newer versions
