Initial commit of modash

This was taken from github.com/lmika/gopkgs/fp

moslice/find.go

@@ -0,0 +1,21 @@
+package moslice
+
+func Contains[T comparable](ts []T, needle T) bool {
+	for _, t := range ts {
+		if t == needle {
+			return true
+		}
+	}
+	return false
+}
+
+func FindWhere[T comparable](ts []T, predicate func(t T) bool) (T, bool) {
+	var zeroT T
+
+	for _, t := range ts {
+		if predicate(t) {
+			return t, true
+		}
+	}
+	return zeroT, false
+}