Adding the JSON_NUMERIC_CHECK flag in __toJson so that numberic strings are properly converted to numbers.
Expands on #7 for numeric conversions of JSON

This PR is linked to #7 providing the ability to actively enable
`JSON_NUMERIC_CONVERSION` while passively it is disabled.

Resolves #7
Adding the JSON_NUMERIC_CHECK flag in __toJson so that numberic strings are properly converted to numbers.
Expands on #7 for numeric conversions of JSON

This PR is linked to #7 providing the ability to actively enable
`JSON_NUMERIC_CONVERSION` while passively it is disabled.

Resolves #7
Merge remote-tracking branch 'origin/feature/json_numeric_check-default-off' into feature/json_numeric_check-default-off
Merge pull request #9 from zircote/feature/json_numeric_check-default-off

Feature/json numeric check default off