refactor(fw_mode_manager/launchdetection): convert params.c to module.yaml

Convert parameter definition(s) from legacy C format to YAML
module configuration.

src/modules/fw_mode_manager/launchdetection/CMakeLists.txt

@@ -34,3 +34,4 @@
 px4_add_library(launchdetection
 	LaunchDetector.cpp
 )
+set_property(GLOBAL APPEND PROPERTY PX4_MODULE_CONFIG_FILES ${CMAKE_CURRENT_SOURCE_DIR}/launchdetection_params.yaml)

src/modules/fw_mode_manager/launchdetection/launchdetection_params.yaml

@@ -0,0 +1,38 @@
+module_name: launchdetection
+parameters:
+- group: FW Auto Takeoff
+  definitions:
+    FW_LAUN_AC_THLD:
+      description:
+        short: Trigger acceleration threshold
+        long: Launch is detected when acceleration in body forward direction is above
+          FW_LAUN_AC_THLD for FW_LAUN_AC_T seconds.
+      type: float
+      default: 30.0
+      unit: m/s^2
+      min: 0
+      decimal: 1
+      increment: 0.5
+    FW_LAUN_AC_T:
+      description:
+        short: Trigger time
+        long: Launch is detected when acceleration in body forward direction is above
+          FW_LAUN_AC_THLD for FW_LAUN_AC_T seconds.
+      type: float
+      default: 0.05
+      unit: s
+      min: 0.0
+      max: 5.0
+      decimal: 2
+      increment: 0.05
+    FW_LAUN_MOT_DEL:
+      description:
+        short: Motor delay
+        long: Start the motor(s) this amount of seconds after launch is detected.
+      type: float
+      default: 0.0
+      unit: s
+      min: 0.0
+      max: 10.0
+      decimal: 1
+      increment: 0.5