Add output collectors to support output described in the draft 2020-12

[OptimumCode]

Resolves #119

[codecov]

Codecov Report

Attention: Patch coverage is 96.33740% with 33 lines in your changes missing coverage. Please review.

Project coverage is 90.76%. Comparing base (7207c36) to head (ba87c05).

Files	Patch %	Lines
.../github/optimumcode/json/schema/OutputCollector.kt	94.44%	4 Missing and 8 partials ⚠️
...github/optimumcode/json/schema/ValidationOutput.kt	70.27%	2 Missing and 9 partials ⚠️
...mumcode/json/schema/internal/RefSchemaAssertion.kt	86.66%	0 Missing and 2 partials ⚠️
...s/object/ConditionalRequiredPropertiesAssertion.kt	86.66%	1 Missing and 1 partial ⚠️
...n/io/github/optimumcode/json/pointer/extensions.kt	91.66%	0 Missing and 1 partial ⚠️
...github/optimumcode/json/schema/AbsoluteLocation.kt	95.00%	0 Missing and 1 partial ⚠️
...ernal/factories/array/UnevaluatedItemsAssertion.kt	95.83%	1 Missing ⚠️
...nal/factories/array/UniqueItemsAssertionFactory.kt	96.15%	0 Missing and 1 partial ⚠️
...chema/internal/factories/string/LengthAssertion.kt	92.30%	0 Missing and 1 partial ⚠️
...ternal/factories/string/PatternAssertionFactory.kt	91.66%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #128      +/-   ##
==========================================
+ Coverage   90.32%   90.76%   +0.44%     
==========================================
  Files         120      124       +4     
  Lines        3203     3637     +434     
  Branches      955     1023      +68     
==========================================
+ Hits         2893     3301     +408     
- Misses         50       56       +6     
- Partials      260      280      +20     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.