Newly named Disney CEO Josh D’Amaro is a hospitality guru who has modelled himself so closely after longtime chief Bob Iger that he even dresses like him, insiders told The Post on Tuesday. A host of challenges await D’Amaro when he becomes head of the House of Mouse on March 18, ranging from lower international tourism to increased competition to movies.  But sources said the 54-year-old who’s been running Disney’s parks and cruises is a “people person” who plays well with others, giving him