Rewrite Discovery and Generation Framework

[Jaybit0]

This PR introduces a rewrite discovery and generation framework that supports offline systematic, random, and data-driven search strategies. Most of the changes do not affect the runtime of SystemDS. In DMLScript, I introduce an interceptor function that the framework requires for rule validation and data retrieval. With the flag -applyGeneratedRewrites, the generated rewrites in GeneratedRewriteClass are applied at runtime. To run the framework, I have provided the class RewriterFramework which can be executed on its own.

I introduce a file called expressions.db that stores all extracted expressions for the data-driven search which causes the license check to fail.

Sorry for the large PR.

Hopefully this rebase succeeded as my branch was up-to-date. Anyway, I have squashed my previous commits into one.

@mboehm7

[codecov]

Codecov Report

Attention: Patch coverage is 66.74459% with 2845 lines in your changes missing coverage. Please review.

Project coverage is 71.17%. Comparing base (cdff385) to head (c4979c2).
Report is 12 commits behind head on main.

Files with missing lines	Patch %	Lines
...ache/sysds/hops/rewriter/RewriterRuntimeUtils.java	26.11%	313 Missing and 52 partials ⚠️
.../apache/sysds/hops/rewriter/RewriterFramework.java	0.00%	235 Missing ⚠️
.../sysds/hops/rewriter/rule/RewriterRuleBuilder.java	32.16%	180 Missing and 33 partials ⚠️
...apache/sysds/hops/rewriter/utils/CodeGenUtils.java	18.96%	163 Missing and 25 partials ⚠️
...s/hops/rewriter/assertions/RewriterAssertions.java	56.66%	149 Missing and 33 partials ⚠️
.../apache/sysds/hops/rewriter/RewriterStatement.java	66.93%	138 Missing and 29 partials ⚠️
...pache/sysds/hops/rewriter/utils/RewriterUtils.java	85.89%	46 Missing and 63 partials ⚠️
...e/sysds/hops/rewriter/codegen/RewriterCodeGen.java	78.82%	84 Missing and 24 partials ⚠️
...sysds/hops/rewriter/utils/RewriterSearchUtils.java	67.91%	70 Missing and 24 partials ⚠️
...pache/sysds/hops/rewriter/RewriterInstruction.java	70.77%	65 Missing and 25 partials ⚠️
... and 27 more

Additional details and impacted files

@@             Coverage Diff              @@
##               main    #2207      +/-   ##
============================================
- Coverage     72.28%   71.17%   -1.11%     
- Complexity    45227    47165    +1938     
============================================
  Files          1466     1502      +36     
  Lines        170454   181716   +11262     
  Branches      33228    35399    +2171     
============================================
+ Hits         123209   129336    +6127     
- Misses        37868    42371    +4503     
- Partials       9377    10009     +632     

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