Initial import: fast_dual_ws (renamed to fhd_fast_tri_ws)

FAST-LIVO2 dual/triple-camera VIO-LIO mapping workspace (ROS2 Humble),
including the N-camera port from Omni-LIVO, rpg_vikit multi-camera
parameter loader, and the um982_driver/gnss_comm packages staged here
ahead of RTK fusion work.

FAST-LIVO2 and rpg_vikit were previously separate git clones tracking
their own GitHub history (Robotic-Developer-Road org, humble/main
branches) — that history is preserved locally in
src/{FAST-LIVO2,rpg_vikit}/.git-github-backup (not pushed here) and
these two are now tracked flat as part of this repo going forward.

src/FAST-LIVO2/scripts/colmap_output.sh

@@ -0,0 +1,25 @@
+#!/bin/bash
+
+TARGET_DIRS=(
+    "$(rospack find fast_livo)/Log/Colmap/images"
+    "$(rospack find fast_livo)/Log/Colmap/sparse/0"
+)
+
+for dir in "${TARGET_DIRS[@]}"; do
+    if [ -d "$dir" ]; then
+        rm -rf "$dir"
+        echo "Removed: $dir"
+    else
+        echo "Not found: $dir"
+    fi
+done
+
+for dir in "${TARGET_DIRS[@]}"; do
+    if [ ! -d "$dir" ]; then
+        mkdir -p "$dir"
+        echo "Created: $dir"
+    else
+        echo "Exists: $dir"
+    fi
+done
+