Bugfix/date range crash when invalid date

[dmtrKovalenko]

This PR closes #1748

Description

Fix issues caused by DateRangePicker and new validation strategy

[vercel]

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🔍 Inspect: https://vercel.com/mui-org/material-ui-pickers/5x7njnl9a
✅ Preview: https://material-ui-picker-git-bugfix-daterange-crash-when-inval-63e10f.mui-org.now.sh

[cypress]

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Test summary

77 • 0 • 1 • 0

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Run details

Project	material-ui-pickers
Status	Passed
Commit	8d51f0a
Started	May 7, 2020 3:23 PM
Ended	May 7, 2020 3:25 PM
Duration	01:32 💡
OS	Linux Debian - 9.11
Browser	Chrome 78

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[codecov]

Codecov Report

Merging #1755 into next will increase coverage by 0.36%.
The diff coverage is 80.64%.

@@            Coverage Diff             @@
##             next    #1755      +/-   ##
==========================================
+ Coverage   90.34%   90.70%   +0.36%     
==========================================
  Files          77       77              
  Lines        2319     2324       +5     
  Branches      435      439       +4     
==========================================
+ Hits         2095     2108      +13     
+ Misses        181      174       -7     
+ Partials       43       42       -1     

Impacted Files	Coverage Δ
lib/src/_shared/PureDateInput.tsx	100.00% <ø> (ø)
lib/src/_shared/hooks/useMaskedInput.tsx	96.07% <ø> (+1.96%)	⬆️
lib/src/_shared/hooks/usePickerState.ts	88.46% <ø> (ø)
lib/src/views/Calendar/Calendar.tsx	85.24% <ø> (+0.96%)	⬆️
.../src/DateRangePicker/DateRangePickerViewMobile.tsx	33.33% <33.33%> (-3.04%)	⬇️
lib/src/views/Calendar/CalendarView.tsx	93.65% <60.00%> (-2.91%)	⬇️
lib/src/DateRangePicker/DateRangePickerInput.tsx	87.87% <100.00%> (+9.41%)	⬆️
...src/DateRangePicker/DateRangePickerViewDesktop.tsx	80.95% <100.00%> (+0.95%)	⬆️
lib/src/_helpers/date-utils.ts	100.00% <100.00%> (ø)
... and 4 more

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