Tools: add script to build all parameter documentation

Tools/scripts/build_log_message_documentation.sh

@@ -0,0 +1,27 @@
+#!/bin/bash
+
+set -e
+set -x
+
+DIR="../buildlogs/LogMessages"
+
+# work from either APM directory or above
+[ -d ArduPlane ] || cd APM
+
+/bin/mkdir -p "$DIR"
+
+generate_log_message_documentation() {
+    VEHICLE="$1"
+
+    # generate Parameters.html, Parameters.rst etc etc:
+    ./Tools/autotest/logger_metadata/parse.py --vehicle "$VEHICLE"
+
+    # stash some of the results away:
+    VEHICLE_DIR="$DIR/$VEHICLE"
+    mkdir -p "$VEHICLE_DIR"
+    /bin/cp LogMessages.* "$VEHICLE_DIR/"
+}
+
+for vehicle in Rover Plane Copter Tracker; do
+    generate_log_message_documentation "$vehicle"
+done