conan option for default logfile inverse

[CrazyDaisyRecords]

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Issue

The conan option "enable_default_logfile" behaves in a inverse way. The conanfile of the package version 9.97.0 handles the option as followed:

if self.options.enable_default_logfile:
            self.cpp_info.defines.append("ELPP_NO_DEFAULT_LOG_FILE")

Proposal

This option shall be handled inverse.

if not self.options.enable_default_logfile:
            self.cpp_info.defines.append("ELPP_NO_DEFAULT_LOG_FILE")

[prince-chrismc]

Not sure this is project is maintained but in CCI there's a PR for something similar to this https://github.com/conan-io/conan-center-index/pull/14332

It would be amazing is the CCI build script could be brought back here to this project so everyone could benefit from it.