Allow use of raw cypher statement as argument of order_by()

[tonioo]

Can be useful for complex ordering needs.

[codecov]

Codecov Report

Attention: Patch coverage is 92.71523% with 22 lines in your changes missing coverage. Please review.

Project coverage is 92.37%. Comparing base (014c201) to head (212b349).
Report is 7 commits behind head on rc/5.4.0.

Files with missing lines	Patch %	Lines
neomodel/async_/match.py	92.71%	11 Missing ⚠️
neomodel/sync_/match.py	92.71%	11 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##           rc/5.4.0     #836      +/-   ##
============================================
- Coverage     92.43%   92.37%   -0.06%     
============================================
  Files            34       34              
  Lines          5180     5352     +172     
============================================
+ Hits           4788     4944     +156     
- Misses          392      408      +16     

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[sonarcloud]

Quality Gate passed

Issues
10 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud