Install eigen

.github/workflows/reusable-ros-tooling-win-build.yml

@@ -55,6 +55,17 @@ jobs:
         with:
           python-version: '3.8'
 
+      # install more dependencies here, we can't use vcpkg because it overrides the python version
+      # and colcon fails later
+      - name: Install Eigen
+        run: |
+            wget https://gitlab.com/libeigen/eigen/-/archive/3.4.0/eigen-3.4.0.zip -O eigen-3.4.0.zip
+            Expand-Archive -Path eigen-3.4.0.zip -DestinationPath C:\Eigen
+            cd C:\Eigen
+            ls
+            cmake -B build -DCMAKE_INSTALL_PREFIX="C:\EigenInstall"
+            cmake --build build --target install
+
       - name: Install fmt
         run: |
           git clone https://github.com/fmtlib/fmt.git