front: create type StdcmPathStep

[clarani]

closes #9392

• create a new type StdcmPathStep
• add a new props stdcmPathSteps to the stdcmStore
• create new actions: updateStdcmPathStep, addStdcmVia, removeStdcmVia
• create new selectors: getStdcmPathSteps, getStdcmOrigin, getStdcmDestination
• clean:
  • remove several actions: updateOriginArrival, updateDestinationArrival, updateOriginArrivalType, updateDestinationArrivalType, updateOriginTolerances, updateDestinationTolerances
  • clean some stdcm components

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Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 65.73%. Comparing base (f79e009) to head (668603c).
Report is 2 commits behind head on dev.

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Additional details and impacted files

@@              Coverage Diff              @@
##                dev    #9428       +/-   ##
=============================================
+ Coverage     39.07%   65.73%   +26.65%     
  Complexity     2267     2267               
=============================================
  Files          1308      680      -628     
  Lines         99202    51451    -47751     
  Branches       3312     2170     -1142     
=============================================
- Hits          38765    33822     -4943     
+ Misses        58474    16801    -41673     
+ Partials       1963      828     -1135     

Flag	Coverage Δ
core	74.93% <ø> (ø)
editoast	71.95% <ø> (-0.04%)	⬇️
front	?
gateway	2.50% <ø> (ø)
osrdyne	3.29% <ø> (ø)
railjson_generator	87.49% <ø> (ø)
tests	86.71% <ø> (ø)

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