Update packages/TCSLib/TCSLib.0.5/opam

Author: mseri

packages/TCSLib/TCSLib.0.5/opam

@@ -28,6 +28,10 @@ build: [
 ]
 dev-repo: "git+https://github.com/tcsprojects/tcslib.git"
 x-maintenance-intent: ["(none)"]
+flags: deprecated
+post-messages: [
+  "TCSLib has been renamed to tcs-lib. Use the tcs-lib package instead."
+]
 url {
   src:
     "https://github.com/tcsprojects/tcslib/releases/download/v0.5/tcslib-0.5.tbz"