CIF-2049 - implement UID support for button component and use URLProvider for the component

[mhaack]

Description

Fixes the Button Component implementation which was very outdated.

• add UID support
• use URLProvider to generate PDP/PLP links

Related Issue

Fixes #553

CIF-2049

How Has This Been Tested?

Extended existing unit tests and added extra unit tests.

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• I have signed the Adobe Open Source CLA.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes and the overall coverage did not decrease.
• All unit tests pass on CircleCi.
• I ran all tests locally and they pass.

[codecov]

Codecov Report

Merging #555 (9e3abf9) into master (6816c9e) will decrease coverage by 0.09%.
The diff coverage is 80.00%.

@@             Coverage Diff              @@
##             master     #555      +/-   ##
============================================
- Coverage     87.48%   87.38%   -0.10%     
- Complexity     1283     1289       +6     
============================================
  Files           234      235       +1     
  Lines          5999     6031      +32     
  Branches        881      888       +7     
============================================
+ Hits           5248     5270      +22     
- Misses          583      588       +5     
- Partials        168      173       +5     

Flag	Coverage Δ	Complexity Δ
integration	63.52% <2.50%> (-0.60%)	881.00 <1.00> (+1.00)	⬇️
jest	83.33% <ø> (ø)	0.00 <ø> (ø)
karma	94.54% <ø> (ø)	0.00 <ø> (ø)
unittests	87.44% <80.00%> (-0.19%)	1257.00 <9.00> (+6.00)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ	Complexity Δ
...mponents/internal/models/v1/button/ButtonImpl.java	52.08% <70.58%> (+3.59%)	10.00 <0.00> (-1.00)	⬆️
...s/internal/models/v1/button/CategoryRetriever.java	75.00% <75.00%> (ø)	3.00 <3.00> (?)
...ts/models/retriever/AbstractCategoryRetriever.java	82.45% <93.33%> (-0.88%)	21.00 <6.00> (+4.00)	⬇️

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