Add support of negative indexes in array notation

[frinyvonnick]

Prerequisites

• [x] I have read the Contributing guidelines
• [x] I have read the Code of conduct and I agree with it

Description

Add support of negative indexes in array notation Issue : #169

[codecov-io]

Codecov Report

Merging #291 into dev will not change coverage. The diff coverage is 100%.

@@         Coverage Diff         @@
##            dev   #291   +/-   ##
===================================
  Coverage   100%   100%           
===================================
  Files        97     97           
  Lines       280    285    +5     
===================================
+ Hits        280    285    +5

Impacted Files	Coverage Δ
packages/immutadot/src/path/apply.js	100% <100%> (ø)	:arrow_up:
packages/immutadot/src/path/utils.js	100% <100%> (ø)	:arrow_up:
packages/immutadot-parser/src/utils.js	100% <100%> (ø)	:arrow_up:

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[nlepage]

I fixed the failing test with a new recursive call to walkPath. We still have to address the "out of bound" negative index problem (somehow it appears outdated).

[nlepage]

I fixed the out of bounds negative array index case and added a test. I wait for your textual approval since I'm the reviewer here :wink:

[frinyvonnick]

LGTM 👍