feat: Add rule brick

[lsaudon]

#1205

mason make rule
? What is the name of the rule? (my-rule) my-rule
? What is the category of the rule? common
? What is the severity of the rule? none
✓ Compiled pre_gen.dart (2.5s)
✓ Generated 4 files. (0.1s)
  created test/src/analyzers/lint_analyzer/rules/rules_list/my_rule/examples/example.dart
  created test/src/analyzers/lint_analyzer/rules/rules_list/my_rule/my_rule_rule_test.dart
  created lib/src/analyzers/lint_analyzer/rules/rules_list/my_rule/my_rule_rule.dart
  created lib/src/analyzers/lint_analyzer/rules/rules_list/my_rule/visitor.dart

[lsaudon]

I update the CONTRIBUTING.md file?

[incendial]

Thank you for the suggestion, it definitely looks useful, but this repository is no longer expected to have new rules. And I'd like to avoid any extra maintenance at this point.