Add support for derive(FromJson) (#2)

* Add support for derive(FromJson)

Signed-off-by: Glenn Lewis <6598971+gmlewis@users.noreply.github.com>

* All tests pass

Signed-off-by: Glenn Lewis <6598971+gmlewis@users.noreply.github.com>

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Signed-off-by: Glenn Lewis <6598971+gmlewis@users.noreply.github.com>

Add support for omitempty (#1)

* Start support for omitempty

Signed-off-by: Glenn Lewis <6598971+gmlewis@users.noreply.github.com>

* MoonBit tests pass

Signed-off-by: Glenn Lewis <6598971+gmlewis@users.noreply.github.com>

* Update README

Signed-off-by: Glenn Lewis <6598971+gmlewis@users.noreply.github.com>

* All tests but test7 pass

Signed-off-by: Glenn Lewis <6598971+gmlewis@users.noreply.github.com>

* Implemented to_json method

Signed-off-by: Glenn Lewis <6598971+gmlewis@users.noreply.github.com>

* Work in progress

Signed-off-by: Glenn Lewis <6598971+gmlewis@users.noreply.github.com>

* Work in progress

Signed-off-by: Glenn Lewis <6598971+gmlewis@users.noreply.github.com>

* test7 passes

Signed-off-by: Glenn Lewis <6598971+gmlewis@users.noreply.github.com>

* Work in progress

Signed-off-by: Glenn Lewis <6598971+gmlewis@users.noreply.github.com>

* moon test passes

Signed-off-by: Glenn Lewis <6598971+gmlewis@users.noreply.github.com>

* moon tests pass

Signed-off-by: Glenn Lewis <6598971+gmlewis@users.noreply.github.com>

* moon tests pass

Signed-off-by: Glenn Lewis <6598971+gmlewis@users.noreply.github.com>

* moon tests pass

Signed-off-by: Glenn Lewis <6598971+gmlewis@users.noreply.github.com>

* moon tests pass - tests 1, 2, 7

Signed-off-by: Glenn Lewis <6598971+gmlewis@users.noreply.github.com>

* moon tests pass - tests 1, 2, 3, 7

Signed-off-by: Glenn Lewis <6598971+gmlewis@users.noreply.github.com>

* moon tests pass - tests 1, 2, 3, 4, 7

Signed-off-by: Glenn Lewis <6598971+gmlewis@users.noreply.github.com>

* moon tests pass - tests 1, 2, 3, 4, 5, 7

Signed-off-by: Glenn Lewis <6598971+gmlewis@users.noreply.github.com>

* moon tests pass - tests 1, 2, 3, 4, 5, 6, 7

Signed-off-by: Glenn Lewis <6598971+gmlewis@users.noreply.github.com>

* All tests pass

Signed-off-by: Glenn Lewis <6598971+gmlewis@users.noreply.github.com>

* Clean up comments

Signed-off-by: Glenn Lewis <6598971+gmlewis@users.noreply.github.com>

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Signed-off-by: Glenn Lewis <6598971+gmlewis@users.noreply.github.com>