Added support for using the jiter package to parse json

[ivanleomk]

This solves issue #665 and introduces support for partial string parsing

summary=None
summary=None
summary=None
summary=''
summary='Mary'
summary='Mary had'
summary='Mary had a'
summary='Mary had a little'
summary='Mary had a little lamb'
summary='Mary had a little lamb whose'
summary='Mary had a little lamb whose fleece'
summary='Mary had a little lamb whose fleece was'
summary='Mary had a little lamb whose fleece was white'
summary='Mary had a little lamb whose fleece was white as'
summary='Mary had a little lamb whose fleece was white as snow'
summary='Mary had a little lamb whose fleece was white as snow and'
summary='Mary had a little lamb whose fleece was white as snow and everywhere'
....

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