Edge simplifier

[cbizon]

Simplifies the edge cypher significantly:

• if the input predicate is symmetric, then it doesn't worry about direction of sub-predicate edges
• If the input predicate is directed, then it converts to canonical direction and doesn't need the WHERE clause (relying on the fact that subpredicates of canonical edges are also canonical.)
• This also relies on the idea that the neo4j contains only the canonical predicates.
• The WHERE clause is only needed in the case that there are multiple predicates AND the original predicates are a mix of canonical, noncanonical, and symmetric predicates
• In the case of related_to edges and no-predicate edges, the cypher is as simple as possible: no predicates, no where clause, undirected.

[codecov[bot]]

Codecov Report

Merging #71 (9adb520) into main (79e7d81) will decrease coverage by 0.42%. The diff coverage is 100.00%.

:exclamation: Current head 9adb520 differs from pull request most recent head cfc4957. Consider uploading reports for the commit cfc4957 to get more accurate results

@@             Coverage Diff             @@
##              main      #71      +/-   ##
===========================================
- Coverage   100.00%   99.58%   -0.42%     
===========================================
  Files            5        5              
  Lines          467      481      +14     
===========================================
+ Hits           467      479      +12     
- Misses           0        2       +2     

Impacted Files	Coverage Δ
reasoner_transpiler/matching.py	99.01% <100.00%> (-0.99%)	:arrow_down:

... and 1 file with indirect coverage changes

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