Tests for each sub-reader

[lukaspie]

Currently, only the xml reader is tested. We need tests for:

• [x] .sle: SpecsLabProdigy files, propietary format of SPECS GmbH
  • [ ] software version v.1.*
  • [x] software version <v.4.63
  • [ ] software version >v.4.63 -> need to have subparser first -> #13
• [x] Phi MultiPak files, propietary format of PHI Electronics, software version SS 3.3.3.2)
  • [x] .spe data (regular spectra) and
  • [x] .pro data (sputter depth profiling)
• [x] .xml: SpecsLab 2files, XML format from SPECS GmbH, software version v.1.6
• [x] .vms: VAMAS files, ISO standard data transfer format (ISO 14976)
  • [x] REGULAR format
  • [x] IRREGULAR format -> need to have subparser first -> #9
• [x] xy: SpecsLabProdigy export format in XY format
• [x] txt:
  • [x] exported by Scienta Omicron instruments
  • [ ] exported by CasaXPS analysis software