Feature/information center

[winniedo]

This branch content implementation of the Information Center, displaying all one-time events.

[janniclas]

hey @winniedo ,
please provide a description of the features and changes contained in this pull request.
Also the automatic tests are failing, please have a look at this before I start reviewing the code.

[codecov-io]

Codecov Report

Merging #125 into develop will not change coverage.
The diff coverage is n/a.

@@          Coverage Diff           @@
##           develop   #125   +/-   ##
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  Coverage        0%     0%           
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  Files           13     13           
  Lines           16     16           
  Branches         2      2           
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  Misses          16     16

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[janniclas]

hey @winniedo ,
I have made some changes to the socket service so that we only receive one event for every action as intended. by doing this a bug in your code was revealed:
The notification center only updates if there have been more than 6 elements added to the table. please have a look at this

[winniedo]

OK, @janniclas I will review your changes and adapt it to my code at the weekend.