Added parser for .NET Core build files and date-agnostic parsing

[HenryGetz]

New Functionality

• Added a new parser specifically designed to handle .NET Core build files
• Implemented date-agnostic parsing logic to handle logs that do not contain explicit timestamps. This allows the parser to function correctly with build logs from various sources, including those that lack standard date formatting.

Fixes

• Resolved an issue where the parser would fail when encountering build logs without dates, making it more robust and versatile for different use cases

Related Issues

• None at this time.

[dogoncouch]

Sorry for the delay. This looks great!