OpenGrok

Test suite from http://json.org/JSON_checker/.

If the JSON_checker is working correctly, it must accept all of the pass*.json files and reject all of the fail*.json files.
`Name`	`Date`	`Size`
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`fail1.json`	22-Oct-2020	`60`
`fail10.json`	22-Oct-2020	`58`
`fail11.json`	22-Oct-2020	`29`
`fail12.json`	22-Oct-2020	`31`
`fail13.json`	22-Oct-2020	`43`
`fail14.json`	22-Oct-2020	`31`
`fail15.json`	22-Oct-2020	`34`
`fail16.json`	22-Oct-2020	`8`
`fail17.json`	22-Oct-2020	`34`
`fail18.json`	22-Oct-2020	`50`
`fail19.json`	22-Oct-2020	`22`
`fail2.json`	22-Oct-2020	`17`
`fail20.json`	22-Oct-2020	`23`
`fail21.json`	22-Oct-2020	`32`
`fail22.json`	22-Oct-2020	`33`
`fail23.json`	22-Oct-2020	`20`
`fail24.json`	22-Oct-2020	`16`
`fail25.json`	22-Oct-2020	`29`
`fail26.json`	22-Oct-2020	`38`
`fail27.json`	22-Oct-2020	`14`
`fail28.json`	22-Oct-2020	`15`
`fail29.json`	22-Oct-2020	`4`
`fail3.json`	22-Oct-2020	`37`
`fail30.json`	22-Oct-2020	`5`
`fail31.json`	22-Oct-2020	`7`
`fail32.json`	22-Oct-2020	`40`
`fail33.json`	22-Oct-2020	`12`
`fail4.json`	22-Oct-2020	`16`
`fail5.json`	22-Oct-2020	`24`
`fail6.json`	22-Oct-2020	`26`
`fail7.json`	22-Oct-2020	`26`
`fail8.json`	22-Oct-2020	`16`
`fail9.json`	22-Oct-2020	`22`
`pass1.json`	22-Oct-2020	`1.4K`
`pass2.json`	22-Oct-2020	`52`
`pass3.json`	22-Oct-2020	`148`
`readme.txt`	22-Oct-2020	`173`