feat(VCarousel): v2 update

[johnleider]

Description

Added new features:

• move arrow logic to v-window so that implementing components can get access to prev/next (v-tabs, v-stepper)
• added continuous prop to v-window (in conjunction with the arrows)
  • can only progress through the carousel linearly
• added show-arrows-on-hover prop
• added soft outline for arrows (helps with ligher background pictures) to v-window
• added hide-delimiter-background that removes background from delimiter icons
• added vertical-delimiters prop
• BREAKING: the cycle prop is no longer implicit

fixes #5260
fixes #5363
fixes #6067
resolves #6158
resolves #6261

Motivation and Context

Improve the look and feel of a very old component

How Has This Been Tested?

jest / visually

Markup:

Kitchen/Docs

// Paste your FULL Playground.vue here

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 not work as expected)
• Improvement/refactoring (non-breaking change that doesn't add any feature but make things better)

Checklist:

• The PR title is no longer than 64 characters.
• The PR is submitted to the correct branch (master for bug fixes and documentation updates, dev for new features and breaking changes).
• My code follows the code style of this project.
• I've added relevant changes to the documentation (applies to new features and breaking changes in core library)

[codecov]

Codecov Report

Merging #6924 into next will increase coverage by 0.09%.
The diff coverage is 77.41%.

@@            Coverage Diff             @@
##             next    #6924      +/-   ##
==========================================
+ Coverage   82.59%   82.69%   +0.09%     
==========================================
  Files         329      329              
  Lines        8408     8421      +13     
  Branches     2135     2136       +1     
==========================================
+ Hits         6945     6964      +19     
+ Misses       1368     1362       -6     
  Partials       95       95

Impacted Files	Coverage Δ
...ages/vuetify/src/components/VCarousel/VCarousel.ts	86.04% <66.66%> (+11.44%)	⬆️
packages/vuetify/src/components/VWindow/VWindow.ts	91.78% <78.57%> (-8.22%)	⬇️
...kages/vuetify/src/components/VRadioGroup/VRadio.ts
.../vuetify/src/components/VRadioGroup/VRadioGroup.ts
...ckages/vuetify/src/components/VRadioGroup/index.ts
...ckages/vuetify/src/components/VRadioGroup/index.js	100% <0%> (ø)
...kages/vuetify/src/components/VRadioGroup/VRadio.js	100% <0%> (ø)
.../vuetify/src/components/VRadioGroup/VRadioGroup.js	100% <0%> (ø)

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[codecov]

Codecov Report

Merging #6924 into next will increase coverage by 0.21%.
The diff coverage is 96.61%.

@@            Coverage Diff             @@
##             next    #6924      +/-   ##
==========================================
+ Coverage   84.35%   84.56%   +0.21%     
==========================================
  Files         327      327              
  Lines        8392     8416      +24     
  Branches     2134     2145      +11     
==========================================
+ Hits         7079     7117      +38     
+ Misses       1217     1203      -14     
  Partials       96       96

Impacted Files	Coverage Δ
...ages/vuetify/src/components/VCarousel/VCarousel.ts	100% <100%> (+25.39%)	⬆️
...ages/vuetify/src/components/VWindow/VWindowItem.ts	100% <100%> (ø)	⬆️
.../vuetify/src/components/VCarousel/VCarouselItem.ts	100% <100%> (ø)	⬆️
packages/vuetify/src/components/VWindow/VWindow.ts	97.36% <94.11%> (-2.64%)	⬇️

---

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Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 5bc074c...b6ce119. Read the comment docs.