Adding upstream version 0.2.2.

Signed-off-by: Daniel Baumann <daniel@debian.org>

config.go

@@ -0,0 +1,10 @@
+package deepmerge
+
+type Config struct {
+	// PreventMultipleDefinitionsOfKeysWithPrimitiveValue causes the return of an error if dst and src define
+	// the same key and if said key has a value with a primitive type
+	// This does not apply to slices or maps.
+	//
+	// Defaults to true
+	PreventMultipleDefinitionsOfKeysWithPrimitiveValue bool
+}