fixed path nodes and edges functions

[DvirDukhan]

No description provided.

[codecov]

Codecov Report

Merging #68 into master will increase coverage by 0.37%.
The diff coverage is 53.84%.

@@            Coverage Diff            @@
##           master     #68      +/-   ##
=========================================
+ Coverage   83.82%   84.2%   +0.37%     
=========================================
  Files           8       8              
  Lines         538     538              
=========================================
+ Hits          451     453       +2     
+ Misses         87      85       -2

Impacted Files	Coverage Δ
redisgraph/path.py	66% <53.84%> (+4%)	⬆️

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