Add Aqua test

Author: p-zubieta

Project.toml

@@ -4,11 +4,13 @@ authors = ["Fengyang Wang <fengyang.wang.0@gmail.com>", "Curtis Vogt <curtis.vog
 version = "0.4.0"
 
 [compat]
+Aqua = "0.5.5"
 julia = "1.6"
 
 [extras]
+Aqua = "4c88cf16-eb10-579e-8560-4a9242c79595"
 Printf = "de0858da-6303-5e67-8744-51eddeeeb8d7"
 Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
 
 [targets]
-test = ["Printf", "Test"]
+test = ["Printf", "Test", "Aqua"]

test/runtests.jl

@@ -1058,4 +1058,11 @@ end
     @test_throws InexactError Bool(fd1)
 end
 
+@static if Base.VERSION >= v"1.6"
+    using Aqua
+    @testset "Aqua.jl" begin
+        Aqua.test_all(FixedPointDecimals)
+    end
+end
+
 end  # global testset