CompatHelper: bump compat for CTBase to 0.16, (drop existing compat)

Author: CompatHelper Julia

Project.toml

@@ -13,7 +13,7 @@ CommonSolve = "38540f10-b2f7-11e9-35d8-d573e4eb0ff2"
 DocStringExtensions = "ffbed154-4ef7-542d-bbb7-c09d3a79fcae"
 
 [compat]
-CTBase = "0.15"
+CTBase = "0.16"
 CTDirect = "0.14"
 CTFlows = "0.8"
 CTModels = "0.2"