Improved boot rate for rxTools users

This release brings two new options for boot entries. The first one is cfw_fix. This option increase boot rate in some CFWs (rxTools), making it similar to the boot rate from version 1.2.1. Since cfw_fix may have some side effects (like decreased boot rate in any other CFW that isn't rxTools), it can be disabled by passing cfw_fix = 0, however this is not recommended. The default for this option is on.

The second new option is debug. This option prints the current entry to 3DS screen before running, waiting until the user press Start button to continue. While this is not exactly useful, it may help when while investigating in case of issues.

See boot_config.ini file for the documentation of these new options.