Remove `= std::string` defaults from the StringType template parameter
on ChaiScript_Parser, Bootstrap::bootstrap(), Std_Lib::library(), and
ChaiScript_Impl. All call sites now specify the string type explicitly.
Requested by @lefticus in PR #684 review.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
I initially tried to use the existing .clang-format file,
but it does not match the code style (at least with clang-format 11)
and the formatting is not consistent across files.
Therefore, I decided to rewrite the .clang-format with some personal
preferences.
Used command
find . -iname "*.hpp" -o -iname "*.cpp" | xargs clang-format -i -style=file
The std::is_member_function_pointer<> template is broken on this version
of the libc++ standard library for const member functions.
To get ChaiScript to work with this, we had to work around the use of
automatically generated std::function wrappers in many cases. This
actually cleaned up the code in a few places and muddied it up in one.
