brukeropusreader

Fix KeyErrors when reading data associated to supplementary AB data, namely:

in BLOCK_7:

• key 132: single channel spectrum of the sample -> ScSm_(1)
• key 136: Interferogram of the sample -> IgSm_(1)

in BLOCK_11:

• 132: single channel spectrum of the reference: ScRf_(1)
• 136: Interferogram of the reference: IgRf_(1)

in BLOCK_23:

• 132: ScSm_(1) Data Parameter,
• 136: IgSm_(1) Data Parameter

in BLOCK_27:

• 132: ScRf_(1) Data Parameter,
• 136: IgRf_(1) Data Parameter

BrukerOpusReader

Added GitHub workflow for automatic testing and publishing (replace former travis workflow)

1.3.7: Merge pull request #2 from atravert/master

FIX multiple entries with same name: In some instances, multiple entries - in particular 'AB' seem to be present, only the the first one is valid.
Now the  supplementary entries are kept and added in the dict with a key ending by '(1)', '(2)', etc...