[Feature Request] Create helper types for specialized data decoding/encoding

[soumyamahunt]

• [x] Create type that only decodes valid data and ignores invalid data for collections, instead of typical way of failing entire decoding when encountering invalid data.
• [x] Create type that decodes a basic data type (i.e Bool, Int, String) from any basic data type (i.e Bool, Int, String).
• [x] Create type that provides various approaches to Date decoding/encoding.
• [x] Create type that provides various approaches to Data decoding/encoding.
• [x] Create type that provides various approaches to non-confirming floats decoding/encoding.
• [x] Create type that can accept two different instances of HelperCoder, decodes and encodes with different instances.

[murad1981]

That would be a cool feature that reduces so much boilerplate code for simple tasks.