feat: add support for new getData([])

[Hugoo]

Closes #44

What kind of change does this PR introduce (bug fix, feature, docs update, ...)?

Add support for new ERC725 getData. See issue above for details.

What is the current behaviour (you can also link to an open issue here)?

Does't support getData() with array version (bytes[] and bytes32[])

What is the new behaviour (if this is a feature change)?

Now, supports getData() with array version (bytes[] and bytes32[])

! Does not support GraphQL provider !

It doesn't support "1 call" for multiple data yet

The work in this PR was already too big to handle this feature. I opened a ticket for this optimisation step:
#49

TODO:

• perform extra 'e2e' tests with MetaMask to check ethereum provider mock implementation
• merge duplicated code on web3 / ethereum providers (supports interface)

[rryter]

Very good Job so far Hugo. I'll do another review once you are ready to merge.

[CallumGrindle]

Cool!

[codecov-commenter]

Codecov Report

Merging #48 (86c856e) into main (8f5fba4) will increase coverage by 4.22%.
The diff coverage is 81.52%.

@@            Coverage Diff             @@
##             main      #48      +/-   ##
==========================================
+ Coverage   80.04%   84.27%   +4.22%     
==========================================
  Files           8        8              
  Lines         406      477      +71     
  Branches       88      100      +12     
==========================================
+ Hits          325      402      +77     
+ Misses         44       35       -9     
- Partials       37       40       +3     

Impacted Files	Coverage Δ
src/lib/provider-wrapper-utils.ts	92.30% <ø> (ø)
src/index.ts	78.70% <72.72%> (+0.27%)	⬆️
src/lib/utils.ts	79.45% <73.80%> (+2.52%)	⬆️
src/providers/ethereumProviderWrapper.ts	81.08% <75.00%> (-6.42%)	⬇️
src/providers/web3ProviderWrapper.ts	89.13% <79.16%> (-10.87%)	⬇️
src/lib/constants.ts	100.00% <100.00%> (ø)
src/lib/encoder.ts	90.42% <100.00%> (+18.51%)	⬆️
src/types/Method.ts	100.00% <100.00%> (ø)

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