integrate CTBase update

Author: ocots

src/CTBase.jl

@@ -0,0 +1,6 @@
+import Base: show, Base
+# we get an error when a solution is printed so I add this function
+# which has to be put in the package CTBase and has to be completed
+function Base.show(io::IO, ::MIME"text/plain", sol::OptimalControlSolution)
+    nothing
+end