Create custom data classes for data observation, serialization, deserialization, and persistence

[Netopya]

Create a generic "DataPoint" class that would encapsulate a single piece of data (its "value"). The class should provide stubs to implement the following functionality so that it could be used across the Knight Scout application:

• Provide an KnockoutJS Observable object
• Provide a DataType to inform serialization/deserialization
• Provide a max value for int types