Fix issues with hierarchy output report

[justin-tay]

This fixes some issues with the hierarchy output report

• Fixes the incorrect assumption that an evaluation path corresponds to only one instance location
• Fixes validation messages to be more consistent and more descriptive of the error
• Fixes to anyOf validator to not short-circuit when annotation collection is enabled

This also makes certain changes to allow for handling certain larger schemas

• Allowing the initial preloading of schemas to be optional
• Changes to fail fast in order for the oneOf validator to be able to discard child schema messages.

[codecov-commenter]

Codecov Report

Attention: 23 lines in your changes are missing coverage. Please review.

Comparison is base (91385c2) 78.92% compared to head (b841234) 78.96%.

Files	Patch %	Lines
...ava/com/networknt/schema/ItemsValidator202012.java	64.28%	5 Missing ⚠️
...ava/com/networknt/schema/PrefixItemsValidator.java	0.00%	4 Missing ⚠️
...schema/output/HierarchicalOutputUnitFormatter.java	87.09%	1 Missing and 3 partials ⚠️
...ava/com/networknt/schema/output/OutputUnitKey.java	0.00%	3 Missing ⚠️
...a/com/networknt/schema/SchemaValidatorsConfig.java	83.33%	2 Missing ⚠️
...main/java/com/networknt/schema/ItemsValidator.java	94.11%	0 Missing and 1 partial ⚠️
...n/java/com/networknt/schema/JsonSchemaFactory.java	83.33%	0 Missing and 1 partial ⚠️
...n/java/com/networknt/schema/MaxItemsValidator.java	50.00%	1 Missing ⚠️
...n/java/com/networknt/schema/MinItemsValidator.java	50.00%	1 Missing ⚠️
...c/main/java/com/networknt/schema/NotValidator.java	80.00%	1 Missing ⚠️

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Additional details and impacted files

@@             Coverage Diff              @@
##             master     #947      +/-   ##
============================================
+ Coverage     78.92%   78.96%   +0.04%     
- Complexity     1699     1714      +15     
============================================
  Files           157      157              
  Lines          5669     5710      +41     
  Branches       1071     1076       +5     
============================================
+ Hits           4474     4509      +35     
- Misses          796      802       +6     
  Partials        399      399              

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