Update ImpromptuModular and add manifest.

manifests/ImpromptuModular.json

@@ -0,0 +1,9 @@
+{
+    "name": "ImpromptuModular",
+    "author": "Marc Boulé",
+    "license": "BSD-3-Clause",
+    "contactEmail": "marc.boule@etsmtl.ca",
+    "manualUrl": "https://github.com/MarcBoule/ImpromptuModular/blob/master/README.md",
+    "sourceUrl": "https://github.com/MarcBoule/ImpromptuModular",
+    "latestVersion": "0.6.0"
+}

repos/ImpromptuModular

@@ -1 +1 @@
-Subproject commit 6933a9ba95c43fa4b446dfb7251b4d13155d6e30
+Subproject commit 6131604464c5ffb8775574661c32123e72cbd05f