WIP v2- Streaming API

[cblage]

Stream json content and emit streams of json tokens in order to fix the current perf issues plaguing the lib.

[coveralls]

Pull Request Test Coverage Report for Build 487

• 41 of 69 (59.42%) changed or added relevant lines in 7 files are covered.
• 48 unchanged lines in 7 files lost coverage.
• Overall coverage decreased (-35.2%) to 49.718%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
lib/json.ex	5	8	62.5%
lib/json/encoder/default_implementations.ex	11	16	68.75%
lib/json/parser.ex	12	17	70.59%
lib/json/decoder.ex	8	23	34.78%

Files with Coverage Reduction	New Missed Lines	%
lib/json/decoder.ex	1	38.46%
lib/json/parser/unicode.ex	4	37.5%
lib/json.ex	5	40.91%
lib/json/parser/object.ex	5	61.54%
lib/json/parser/string.ex	7	50.0%
lib/json/parser/array.ex	8	50.0%
lib/json/parser.ex	18	34.29%

Totals
Change from base Build 479:	-35.2%
Covered Lines:	88
Relevant Lines:	177

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💛 - Coveralls

[cblage]

So far so good