Added json lines reader and writer

[yann-eugone]

https://jsonlines.org/

[codecov]

Codecov Report

Merging #29 (ff59a71) into 0.x (b2e6a7d) will increase coverage by 0.11%.
The diff coverage is 100.00%.

@@             Coverage Diff              @@
##                0.x      #29      +/-   ##
============================================
+ Coverage     92.56%   92.67%   +0.11%     
- Complexity      592      604      +12     
============================================
  Files            96       98       +2     
  Lines          1721     1747      +26     
============================================
+ Hits           1593     1619      +26     
  Misses          128      128              

Impacted Files	Coverage Δ
...src/Job/Item/Reader/Filesystem/JsonLinesReader.php	100.00% <100.00%> (ø)
...src/Job/Item/Writer/Filesystem/JsonLinesWriter.php	100.00% <100.00%> (ø)
src/batch/src/JobExecutionLogger.php	100.00% <0.00%> (ø)

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update b2e6a7d...ff59a71. Read the comment docs.