feat(b-tooltip): add noninteractive prop (closes #4556)

[jacobmllr95]

Describe the PR

This PR adds a noninteractive prop to the <b-tooltip> component and noninteractive modifier to the v-b-tooltip directive. By setting the prop/modifier you can restore Bootstraps default behavior when hovering over the tooltips content.

Closes #4556.

PR checklist

What kind of change does this PR introduce? (check at least one)

• Bugfix
• Feature
• Enhancement
• ARIA accessibility
• Documentation update
• Other (please describe)

Does this PR introduce a breaking change? (check one)

• No
• Yes (please describe)

The PR fulfills these requirements:

• It's submitted to the dev branch, not the master branch
• When resolving a specific issue, it's referenced in the PR's title (i.e. [...] (fixes #xxx[,#xxx]), where "xxx" is the issue number)
• It should address only one issue or feature. If adding multiple features or fixing a bug and adding a new feature, break them into separate PRs if at all possible.
• The title should follow the Conventional Commits naming convention (i.e. fix(alert): not alerting during SSR render, docs(badge): update pill examples, chore(docs): fix typo in README, etc). This is very important, as the CHANGELOG is generated from these messages.

If new features/enhancement/fixes are added or changed:

• Includes documentation updates (including updating the component's package.json for slot and event changes)
• Includes any needed TypeScript declaration file updates
• New/updated tests are included and passing (if required)
• Existing test suites are passing
• CodeCov for patch has met target
• The changes have not impacted the functionality of other components or directives
• ARIA Accessibility has been taken into consideration (Does it affect screen reader users or keyboard only users? Clickable items should be in the tab index, etc.)

If adding a new feature, or changing the functionality of an existing feature, the PR's
description above includes:

• A convincing reason for adding this feature (to avoid wasting your time, it's best to open a suggestion issue first and wait for approval before working on it)

[codecov]

Codecov Report

Merging #4563 into dev will increase coverage by <.01%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##              dev    #4563      +/-   ##
==========================================
+ Coverage   99.92%   99.92%   +<.01%     
==========================================
  Files         251      251              
  Lines        5218     5219       +1     
  Branches     1380     1380              
==========================================
+ Hits         5214     5215       +1     
  Misses          3        3              
  Partials        1        1

Impacted Files	Coverage Δ
src/components/tooltip/tooltip.js	100% <ø> (ø)	⬆️
.../components/tooltip/helpers/bv-tooltip-template.js	100% <ø> (ø)	⬆️
src/components/tooltip/helpers/bv-tooltip.js	99.6% <100%> (ø)	⬆️
src/directives/tooltip/tooltip.js	100% <100%> (ø)	⬆️

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[tmorehouse]

This could be seen as a breaking change, as it is a change in behaviour for BootsrapVue which has been in place for quite some time.

The no-hide on hover was was added for Popovers (and tooltips), and for Accessibility reasons (uses that may have issues holding a mouse steady).

Also note that IE 11 does not support pointer-events: none;

[tmorehouse]

It might be better to make this new (to BootstrapVue) behaviour opt-in (i.e. a no-interactive or noninteractive)

[jacobmllr95]

@tmorehouse Solid points. A noninteractive modifier seems to be a good solution.

[tmorehouse]

It should also be noted that it only affects (applies to) the hover trigger.

[tmorehouse]

Perhaps we should also target this feature to release 2.3.0