Add langs Cherrycake and Insitux

Task/Associative-array-Creation/Insitux/associative-array-creation-1.insitux

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+{
+  :a "value"    ;keyword key, string value
+  :b 123        ;keyword key, number value
+  456 [1 2 3]   ;number key, vector value
+  [5 6 7] :b    ;vector key, keyword value
+  {:a 1} {:b 2} ;dictionary key, dictionary value
+}

Task/Associative-array-Creation/Insitux/associative-array-creation-2.insitux

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+;use dictionary as function for lookup; commas for readability, treated as white-space
+> ({:a 1, :b 2, :c 3} :b)
+2

Task/Associative-array-Creation/Insitux/associative-array-creation-3.insitux

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+;extend existing dictionary by using it as a function with two arguments
+> ({:a 1, :b 2, :c 3} :b 3)
+{:a 1, :b 3, :c 3}