Support running diktat without configuration

[nulls]

What's done:

• moved all from 'diktat-common' to 'diktat-rules' and diktat-api
• support empty configuration in plugins and cli

It closes #1833

[github-actions[bot]]

JUnit Tests (Windows, EnricoMi/publish-unit-test-result-action@v2)

   164 files  ±0     164 suites  ±0   6m 49s :stopwatch: +5s 1 402 tests ±0  1 385 :heavy_check_mark: ±0  17 :zzz: ±0  0 :x: ±0  2 781 runs  ±0  2 764 :heavy_check_mark: ±0  17 :zzz: ±0  0 :x: ±0 

Results for commit 6f020652. ± Comparison against base commit 137b4f7b.

This pull request removes 2 and adds 2 tests. Note that renamed tests count towards both.

``` com.saveourtool.diktat.test.ConfigReaderTest ‑ testing json reading() com.saveourtool.diktat.test.ConfigReaderTest ‑ testing kotlin version() ``` ``` com.saveourtool.diktat.ruleset.config.DiktatRuleConfigYamlReaderTest ‑ testing json reading() com.saveourtool.diktat.ruleset.config.DiktatRuleConfigYamlReaderTest ‑ testing kotlin version() ```

:recycle: This comment has been updated with latest results.

[github-actions[bot]]

JUnit Tests (macOS, EnricoMi/publish-unit-test-result-action@v2)

   164 files  ±0     164 suites  ±0   5m 17s :stopwatch: -58s 1 402 tests ±0  1 366 :heavy_check_mark: ±0  36 :zzz: ±0  0 :x: ±0  2 781 runs  ±0  2 745 :heavy_check_mark: ±0  36 :zzz: ±0  0 :x: ±0 

Results for commit 6f020652. ± Comparison against base commit 137b4f7b.

This pull request removes 2 and adds 2 tests. Note that renamed tests count towards both.

``` com.saveourtool.diktat.test.ConfigReaderTest ‑ testing json reading() com.saveourtool.diktat.test.ConfigReaderTest ‑ testing kotlin version() ``` ``` com.saveourtool.diktat.ruleset.config.DiktatRuleConfigYamlReaderTest ‑ testing json reading() com.saveourtool.diktat.ruleset.config.DiktatRuleConfigYamlReaderTest ‑ testing kotlin version() ```

:recycle: This comment has been updated with latest results.

[codecov[bot]]

Codecov Report

Attention: 15 lines in your changes are missing coverage. Please review.

Comparison is base (137b4f7) 78.18% compared to head (6f02065) 78.42%.

Files	Patch %	Lines
...rtool/diktat/ruleset/config/CommonConfiguration.kt	76.00%	2 Missing and 4 partials :warning:
...t/ruleset/config/AbstractDiktatRuleConfigReader.kt	71.42%	3 Missing and 1 partial :warning:
.../saveourtool/diktat/plugin/maven/DiktatBaseMojo.kt	0.00%	3 Missing :warning:
...lin/com/saveourtool/diktat/cli/DiktatProperties.kt	0.00%	1 Missing :warning:
...rtool/diktat/plugin/gradle/tasks/DiktatTaskBase.kt	50.00%	0 Missing and 1 partial :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #1837 +/- ## ============================================ + Coverage 78.18% 78.42% +0.24% - Complexity 2425 2434 +9 ============================================ Files 131 133 +2 Lines 8631 8617 -14 Branches 2174 2171 -3 ============================================ + Hits 6748 6758 +10 + Misses 917 897 -20 + Partials 966 962 -4 ```

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