add compat bounds

Author: baggepinnen

Project.toml

@@ -17,10 +17,13 @@ Statistics = "10745b16-79ce-11e8-11f9-7d13ad32a3b2"
 UnPack = "3a884ed6-31ef-47d7-9d2a-63182c4928ed"
 
 [compat]
-ControlSystems = "0.11"
 ComponentArrays = "0.9, 0.10"
+ControlSystems = "0.11"
 MatrixPencils = "1"
 MonteCarloMeasurements = "1.0"
+Optim = "1.5"
+Distributions = "0.25"
+RecipesBase = "1"
 UnPack = "1.0"
 julia = "1.6"