MiKo_1080 now ignores endings with '_one', '_first', '_second', '_third'

[RalfKoban]

• Added EndsWith and TrimEndBy methods to StringBuilderExtensions to enhance string manipulation capabilities.
• Updated tests for StringBuilderExtensions to cover new methods.
• Enhanced MiKo_1080_UseNumbersInsteadOfWordingAnalyzer to ignore specific endings like _one, _first, _second, and _third.
• Added and updated tests for MiKo_1080_UseNumbersInsteadOfWordingAnalyzer to ensure correct handling of new endings.
• Fixed MiKo_1080_UseNumbersInsteadOfWordingAnalyzer to no longer report UseCondition as a violation