Test parsing and printing example files

git-subtree-dir: tests/unity
git-subtree-split: 1782bab0bacd349a45bc215ff91f082912cd7a64

Simplify some code and improve correctness

This might cause slight changes in behavior, but it shouldn't break
anything that is not already broken (for example the original macro
could either return a double, or an integer or whatever depending on if
object is NULL or not.)

Replaces the hand written floating point parser with the C library
implementation.

This reverts commit c866abd8.

The length of this buffer was intentional. This looks like a false
positive.

Use goto fail for error handling and fix some memory leaks on the way

Simplify error handling using goto fail and improve some names.

Makes the control flow easier to reason about and fixes a few potential
memory leaks.

Makes the control flow easier to reason about and fixes a few potential
memory leaks.

Makes the control flow easier to reason about and fixes a few potential
memory leaks.

Introducing the switch defaults in an earlier commit made UTF-16 \u
sequence handling broken.

More compiler flags + correctness improvements

Makes type conversions explicit, if they alter a value

If the number is bigger or smaller than the biggest or smallest integer,
the behavior would be undefined.

This commit defines it as saturation behavior.

Fix potential null pointer dereference in cJSON_Utils
Fixes #96