Replace deprecated Eigen Github submodule by new Gitlab submodule.

08448e7d · David Tellenbach · Tobias Lasser · 7eb49fbd · 08448e7d · c1b0aea6
Commit 08448e7d authored Apr 08, 2020 by David Tellenbach Committed by Tobias Lasser Apr 08, 2020
--- a/.gitmodules
+++ b/.gitmodules
@@ -3,7 +3,7 @@
 	url = https://github.com/catchorg/Catch2.git
 [submodule "thirdparty/eigen3"]
 	path = thirdparty/eigen3
-	url = https://github.com/eigenteam/eigen-git-mirror
+	url = https://gitlab.com/libeigen/eigen.git
 [submodule "thirdparty/spdlog"]
 	path = thirdparty/spdlog
 	url = https://github.com/gabime/spdlog.git

--- a/eigen3 @ c1b0aea6
+++ b/eigen3 @ c1b0aea6
-Subproject commit 1affbe9eda13f1f71629e0bf1398ea3ed3e58cb9
+Subproject commit c1b0aea653f6fec269264230f67b59cad5517937