Migrate Tests to React Native Testing library

[arpitBhalla]

What kind of change does this PR introduce?
Closes #2922
Migrate existing tests from enzyme to react native testing library. This is 4th and final PR for migration. Earlier PRs:- #3046, #3150, #3169

• Accessory
• Avatar
• Badge
• BottomSheet
• Button
• ButtonGroup
• Card
• CheckBox
• Chip
• Divider
• FAB
• FeaturedTile
• Header
• Icon
• Image
• Input
• LinearProgress
• ListItem
• Overlay
• PricingCard
• SearchBar
• SearchBar-android
• SearchBar-default
• SearchBar-ios
• Slider
• SocialIcon
• SpeedDial
• Switch
• Text
• ThemeProvider
• Tile
• Tooltip
• colors
• makeStyles
• Tab
• TabItem
• withBadge
• withTheme

Did you add tests for your changes?
Yes i have added few more test case as well.

If relevant, did you update the documentation?
Not required

Summary
Existing code uses enzyme for testing this PR would change it to react native testing library.
Related #2922

Does this PR introduce a breaking change?
No

Other information
GSoC task of @arpitBhalla

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[codecov]

Codecov Report

Merging #3170 (e1812b0) into next (4bb9449) will increase coverage by 3.38%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             next    #3170      +/-   ##
==========================================
+ Coverage   80.53%   83.91%   +3.38%     
==========================================
  Files          80       80              
  Lines        1654     1654              
  Branches      692      693       +1     
==========================================
+ Hits         1332     1388      +56     
+ Misses        317      262      -55     
+ Partials        5        4       -1     

Impacted Files	Coverage Δ
src/ButtonGroup/ButtonGroup.tsx	96.49% <ø> (-3.51%)	⬇️
src/Dialog/Dialog.tsx	100.00% <ø> (ø)
src/Divider/Divider.tsx	92.30% <ø> (-7.70%)	⬇️
src/FAB/FAB.tsx	100.00% <ø> (ø)
src/Header/Header.tsx	95.83% <ø> (+4.16%)	⬆️
src/Overlay/Overlay.tsx	100.00% <ø> (ø)
src/PricingCard/components/PricingButton.tsx	80.00% <ø> (-20.00%)	⬇️
src/Slider/Slider.tsx	73.80% <ø> (+13.33%)	⬆️
src/Slider/components/SliderThumb.tsx	100.00% <ø> (ø)
src/SpeedDial/SpeedDial.tsx	100.00% <ø> (ø)
... and 27 more

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