In https://github.com/nlohmann/json/issues/1387, a user was facing difficulty because he was using map class.
Map class sorts it's elements on the basis of < function.
Now this meant that the bug existed in inline bool operator<
If you are to look at the Numerics Mentioned beside the comment in the previous code base, you would find that they do not match the one mentioned/implied in enum class value_t
The correction of these values fixes the issue altogether
* Rename 'develop' folder to 'include/nlohmann'
* Rename 'src' folder to 'single_include/nlohmann'
* Use <nlohmann/*> headers in sources and tests
* Change amalgamate config file
