DRY UKVS converter and leverage standard parser

[ibnesayeed]

Currently, ukvsconvert.py has some duplicate code in various serialization functions, which can benefit from some DRYing (Don't Repeat Yourself).

More importantly, it parses UKVS files with a very specific order and spacing in mind, which makes the parser brittle and defeats the purpose of JSON block. After splitting the first two columns out the remaining JSON part of the line can simply be parsed using standard json.loads() function.

Moreover, a template system can be used to serialize the output in various formats. This is not necessary, but will make the code more maintainable in the long run. In fact, JSON serialization does not even need a custom template, it can simply be done using json.dumps() function (the output can be customized to have certain indentation, spacing, line breaks, or sorting of keys).

[esavaria]

I agree this is a much more robust approach to generating the json output. As more features are added templates will help with the efficiency as well.

Thanks,
Evan