PRINT_MODULE_USAGE_PARAM_{INT,FLOAT}: add support to ignore the default value

Tools/px4moduledoc/srcparser.py

src/modules/mavlink/mavlink_main.cpp

...crortps_bridge/micrortps_client/microRTPS_client_main.cpp

src/platforms/common/module.cpp

src/platforms/px4_module.h

src/systemcmds/esc_calib/esc_calib.c

src/systemcmds/pwm/pwm.cpp

src/systemcmds/tune_control/tune_control.cpp