Rename __* to _gde_*
https://timsong-cpp.github.io/cppwp/n3337/global.nameshttps://en.cppreference.com/w/cpp/language/identifiers
Identifiers appearing as a token or preprocessing token (i.e., not in user-defined-string-literal like operator ""id) (since C++11) of one of the following forms are reserved:
- identifiers with a double underscore anywhere;
- identifiers that begin with an underscore followed by an uppercase letter;
- in the global namespace, identifiers that begin with an underscore.
Non-exhaustive list of case-sensitive renames:
GDExtension -> GDNative
GDNATIVE -> GDEXTENSION
gdextension -> gdnative
ExtensionExtension -> Extension (for where there was GDNativeExtension)
EXTENSION_EXTENSION -> EXTENSION (for where there was GDNATIVE_EXTENSION)
gdnlib -> gdextension
gdn_interface -> gde_interface
gdni -> gde_interface