add compat

Author: baggepinnen

Project.toml

@@ -1,6 +1,6 @@
 name = "Multibody"
 uuid = "e1cad5d1-98ef-44f9-a79a-9ca4547f95b9"
-authors = ["JuliaHub Inc."]
+authors = ["Fredrik Bagge Carlson, JuliaHub Inc."]
 version = "0.1.0"
 
 [deps]
@@ -26,6 +26,7 @@ CoordinateTransformations = "0.6"
 DataInterpolations = "5"
 FileIO = "1"
 JuliaSimCompiler = "0.1.12"
+LinearAlgebra = "1.6"
 MeshIO = "0.4"
 ModelingToolkit = "9"
 ModelingToolkitStandardLibrary = "2.7.2"