Reimplemented error tree disambiguation in Java

[PieterOlivier]

This PR replaces the (naive) error disambiguation filter written in Rascal. The time complexity has been reduced from O(n^2) to O(n), where n is the number of nodes in the original parse forest.

In practice this means that in extreme scenarios (where there are many ambiguous error trees), the time it takes to disambiguate a parse forest is about the same as the time it takes to parse the input.

For instance, in the SlowDisambiguationBug test case included in this PR both the parse time and disambiguation time are around 5 seconds on my machine. Disambiguation in Rascal took +- 30 minutes.

[DavyLandman]

Great improvement 👍

I have some clarification questions, and some ideas to increase performance.

Have you measured the performance with a profiler, since 3 seconds might still be a lot, especially compared to original parsing time.

[codecov]

Codecov Report

Attention: Patch coverage is 75.86207% with 21 lines in your changes missing coverage. Please review.

Please upload report for BASE (feat/error-recovery@027ba71). Learn more about missing BASE report.

Files with missing lines	Patch %	Lines
...l/parser/gtd/recovery/ParseErrorDisambiguator.java	71%	15 Missing and 5 partials ⚠️
...g/rascalmpl/values/RascalFunctionValueFactory.java	80%	0 Missing and 1 partial ⚠️

Additional details and impacted files

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##             feat/error-recovery   #2035   +/-   ##
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  Coverage                       ?     49%           
  Complexity                     ?    6556           
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  Files                          ?     685           
  Lines                          ?   61077           
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  Hits                           ?   30155           
  Misses                         ?   28717           
  Partials                       ?    2205           

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