feat(core): Hint support 12 directions

[waterplea]

PR Checklist

Please check if your PR fulfills the following requirements:

• The commit message follows Conventional Commits
• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)

PR Type

What kind of change does this PR introduce?

• Bugfix
• Feature
• Refactoring
• Code style update
• Build or CI related changes
• Documentation content changes

What is the current behavior?

Closes #699
Closes #739
Closes #1258

What is the new behavior?

Does this PR introduce a breaking change?

• Yes
• No

[lumberjack-bot]

Pull request was closed ✔️

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[github-actions]

Visit the preview URL for this PR (updated for commit 6abf063):

https://taiga-ui--pr2256-hints-54zgi743.web.app

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[codecov]

Codecov Report

Merging #2256 (fac915d) into v3.x (10ac547) will increase coverage by 0.04%.
The diff coverage is 56.66%.

❗ Current head fac915d differs from pull request most recent head 6abf063. Consider uploading reports for the commit 6abf063 to get more accurate results

@@            Coverage Diff             @@
##             v3.x    #2256      +/-   ##
==========================================
+ Coverage   56.57%   56.62%   +0.04%     
==========================================
  Files         966      973       +7     
  Lines        9718     9622      -96     
  Branches     1975     1951      -24     
==========================================
- Hits         5498     5448      -50     
+ Misses       3788     3743      -45     
+ Partials      432      431       -1     

Flag	Coverage Δ
addon-charts	73.67% <100.00%> (+0.12%)	⬆️
addon-doc	18.87% <ø> (ø)
addon-editor	28.96% <ø> (ø)
addon-mobile	∅ <ø> (∅)
addon-table	83.78% <ø> (ø)
addon-tablebars	∅ <ø> (∅)
cdk	64.75% <ø> (ø)
core	67.15% <56.20%> (+0.75%)	⬆️
kit	58.54% <54.54%> (-0.05%)	⬇️
summary	56.62% <56.66%> (+0.04%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
...charts/components/pie-chart/pie-chart.component.ts	75.00% <ø> (ø)
...on-charts/components/pie-chart/pie-chart.module.ts	100.00% <ø> (ø)
...core/components/hints-host/hints-host.component.ts	100.00% <ø> (+20.00%)	⬆️
...ts/core/components/hints-host/hints-host.module.ts	100.00% <ø> (ø)
projects/core/directives/hint/hint-options.ts	100.00% <ø> (ø)
projects/core/directives/hint/hint.module.ts	100.00% <ø> (ø)
.../kit/components/line-clamp/line-clamp.component.ts	14.70% <ø> (ø)
...cts/kit/components/line-clamp/line-clamp.module.ts	100.00% <ø> (ø)
...ts/core/directives/hint/hint-position.directive.ts	23.91% <23.91%> (ø)
...ects/core/directives/hint/hint-manual.directive.ts	25.00% <25.00%> (ø)
... and 22 more

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[nsbarsukov]

Can we explicitly extends this class by all "drivers" ?

It was difficult for me to realize when we subscribe to all "drivers"-observables :(
Now I understand that it happens here but it is not obvious.

[waterplea]

The idea is we have a driver and we have a vehicle. To connect them together we need to inject and subscribe. And to initiate this action we need a directive with a particular selector. But the action is always the same so I moved it into abstract directive. Basically, for every pair of driver/vehicle we will have a directive like that which is only necessary for its selector and the work it does is the same and happens in abstract class.

[well-done-bot]