Refactor folder (#10475)

Move many third-party components' source codes from the src folder to a new folder called deps_src. The goal is to make the code structure clearer and easier to navigate.

scripts/DockerBuild.sh

@@ -0,0 +1,17 @@
+#!/bin/bash
+SCRIPT_DIR=$(cd -P -- "$(dirname -- "$0")" && printf '%s\n' "$(pwd -P)")
+PROJECT_ROOT=$(dirname "$SCRIPT_DIR")
+
+set -x
+# Wishlist hint:  For developers, creating a Docker Compose 
+# setup with persistent volumes for the build & deps directories
+# would speed up recompile times significantly.  For end users,
+# the simplicity of a single Docker image and a one-time compilation
+# seems better.
+docker build -t orcaslicer \
+  --build-arg USER=$USER \
+  --build-arg UID=$(id -u) \
+  --build-arg GID=$(id -g) \
+  --build-arg NCORES=$NCORES \
+  -f "$SCRIPT_DIR/Dockerfile" \
+  $PROJECT_ROOT