feat : add complex/base/parse

[marsian83]

Description

This PR tackles the parsing as discussed here

This implements a parser which will convert a complex number represented as a string to a complex like object

This can be used as a base for @stdlib/complex/assert/is-complex and @stdlib/complex/parse-32 and @stdlib/complex/parse-64.
Detailed discussion as to why this approach may be chosen can be found #1332 & #1370

Related Issues

#1332
#1333
#1370

Checklist

Please ensure the following tasks are completed before submitting this pull request.

• Read, understood, and followed the contributing guidelines.

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@stdlib-js/reviewers

[kgryte]

@marsian83 Looks like linting is failing. Mind resolving those lint errors?

[marsian83]

@marsian83 Looks like linting is failing. Mind resolving those lint errors?

While linting this line is behaving weirdly

It requires me to have no spaces in JSDOC type definitions but also requires me to have spaces after the curly bracket opening and before it closing. how do I resolve this conflicting requirement

[marsian83]

These three are proving to be quite problematic to me, the first one, I do not understand.
The second is the one I discussed above.
The third one is asking me to require Number which is an inbuilt JS module?

[marsian83]

I have noted and understood the changes you made and also commited and signed them off
I am still confused about the linter asking me to require 'Number' though

[marsian83]

There was a slight lint error in the license headers. I have fixed and pushed changes

[Planeshifter]

@marsian83 Thanks for making the requested changes and working on this new package in the first place! Made some further small changes to align with project conventions and will merge once CI passes. 🚀

[marsian83]

@Planeshifter Thanks 😄 for bringing to my attention the conventions I missed, I will keep these in mind from next time on now that you have pointed these out.