Implemented Sort Operator; Basic Sort query works

[SarveshOO7]

Note: Execplan must be removed from physical plans for basic_sort.sql

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 0% with 75 lines in your changes are missing coverage. Please review.

Project coverage is 0.00%. Comparing base (e025452) to head (622841a).
Report is 1 commits behind head on main.

Files	Patch %	Lines
eggstrain/src/execution/operators/sort.rs	0.00%	59 Missing ⚠️
eggstrain/src/execution/query_dag.rs	0.00%	12 Missing ⚠️
eggstrain/src/execution/operators/filter.rs	0.00%	4 Missing ⚠️

Additional details and impacted files

@@          Coverage Diff          @@
##            main      #5   +/-   ##
=====================================
  Coverage   0.00%   0.00%           
=====================================
  Files          5       6    +1     
  Lines        242     311   +69     
  Branches     242     311   +69     
=====================================
- Misses       242     311   +69     

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[ktbooker]

LGTM