Minimal Angular 8 project for the new UI

[nbasargin]

Adding a minimal Angular 8 project for the new UI. No Karma, no Protractor, only the essential stuff.
Module name is ravestate_ui_new for now. We will change it to ravestate_ui once the old UI is outdated.

[codecov-io]

Codecov Report

Merging #102 into velvet-revolution will increase coverage by 0.08%.
The diff coverage is n/a.

@@                  Coverage Diff                  @@
##           velvet-revolution     #102      +/-   ##
=====================================================
+ Coverage              74.87%   74.96%   +0.08%     
=====================================================
  Files                     56       56              
  Lines                   3495     3495              
=====================================================
+ Hits                    2617     2620       +3     
+ Misses                   878      875       -3

Impacted Files	Coverage Δ
modules/ravestate/causal.py	92.52% <0%> (-0.47%)	⬇️
modules/ravestate/constraint.py	92.1% <0%> (+0.32%)	⬆️
modules/ravestate_persqa/__init__.py	66.43% <0%> (+0.69%)	⬆️
modules/ravestate/activation.py	89.72% <0%> (+1.08%)	⬆️

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[josephbirkner]

Nice 👍 Thanks for the Readme!

[l-laura]

Worked well on Ubuntu, except for the ng serve issue mentioned in the comments. Nice work :)