Added new extensions and helpers across packages

[jamesmcroft]

Changes have been made to introduce the following extensions and helpers across MADE.NET

• Added AddIf, AddRangeIf, RemoveIf, RemoveRangeIf conditional collection extensions
• Added Shuffle collection extension for randomly sorting an enumerable
• Added ToDaySuffix date extension to provide the st, nd, rd, or th day suffix
• Added Truncate string extension for shortening a value with an ellipsis suffix (...)
• Added to/from Base 64 string conversion extensions and value converter
• Updated EntityBase configuration to support setting up the primary key ID
• Added IsLike string extension for validating a wildcard LIKE style query against a specified value (e.g. "He*")
• Added JsonResult and controller extensions to support returning the JSON result and internal server error result
• Added dependency injection extensions for registering included web services such as the user accessor, and exception handling
• Updated EF NuGet packages to latest versions

PR checklist

• Tests have been added/updated (where applicable) and pass
• Documentation has been added/updated for changes
• Code styling has been met on new source file changes
• Contains NO breaking changes

Other information