feat(tooltip, popover): add functionality, which hide tooltip & popover after delay (#5572)

[daniloff200]

closes #5572

PR Checklist

Before creating new PR, please take a look at checklist below to make sure that you've done everything that needs to be done before we can merge it.

• [x] read and followed the CONTRIBUTING.md guide.
• [x] built and tested the changes locally.
• [x] added/updated tests.
• [x] added/updated API documentation.
• [x] added/updated demos.

[codecov[bot]]

Codecov Report

Merging #5599 (e41dcf5) into development (6e200b5) will increase coverage by 73.83%. The diff coverage is 100.00%.

@@               Coverage Diff                @@
##           development    #5599       +/-   ##
================================================
+ Coverage             0   73.83%   +73.83%     
================================================
  Files                0      323      +323     
  Lines                0    11661    +11661     
  Branches             0     2490     +2490     
================================================
+ Hits                 0     8610     +8610     
- Misses               0     1963     +1963     
- Partials             0     1088     +1088     

Impacted Files	Coverage Δ
demo/src/ng-api-doc.ts	100.00% <ø> (ø)
src/popover/popover.config.ts	76.47% <100.00%> (ø)
src/popover/popover.directive.ts	71.56% <100.00%> (ø)
src/tooltip/tooltip.config.ts	75.00% <100.00%> (ø)
src/tooltip/tooltip.directive.ts	67.94% <100.00%> (ø)
src/chronos/create/from-string-and-array.ts	95.83% <0.00%> (ø)
src/datepicker/reducer/bs-datepicker.effects.ts	75.55% <0.00%> (ø)
src/timepicker/timepicker.component.ts	92.16% <0.00%> (ø)
src/pagination/pager.component.ts	79.71% <0.00%> (ø)
src/chronos/create/from-array.ts	86.30% <0.00%> (ø)
... and 318 more

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[daniloff200]

hey, @dmitry-zhemchugov , I will need your help with fixing my e2e tests later :)

[dmitry-zhemchugov]

Need fix regarding cooldown of tooltip @daniloff200

[daniloff200]

Project: ngx-bootstrap-demo Url: https://ngx-bootstrap-demo--pr-5599-pccirowb.web.app This link will expire at Thu 11 Mar 2021 07:40:19 AM GMT

[cypress[bot]]

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Test summary

92 • 0 • 1 • 0

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Run details

Project	ngx-bootstrap
Status	Passed
Commit	6c923d468f ℹ️
Started	Feb 9, 2021 7:54 AM
Ended	Feb 9, 2021 8:00 AM
Duration	06:48 💡
OS	Linux Ubuntu Linux - 16.04
Browser	Electron 61

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[giovannidias1]

why this PR still open