splashtools: types and dimensions

[ax3l]

It would be great if the current listing of entries in splashtools could be a bit extended.
That would be a good test and implementation using #174 and #189.

Add more output to --list|-l mode for data sets and attributes:

• also outputting their CollectionType (and DCDataType) (Data Collector: Read CollectionType #189)
• their dimensionality for data sets and non-scalar attributes
  • local in the current file and
  • global
• for attributes: print actual values stored inside (Add Recognition for new DCDataTypes #174)

The new functionality can then be added in our .travis.yml to be tested on the created example data sets.

splashtools -l -f h5/testWriteRead_0_0_0.h5
h5ls -lrdf h5/testWriteRead_0_0_0.h5
# bpls -l -A adiosFile.bp
# type  path-to-attribute attr = value(s)