add decompose function in Array to return a tuple with first element and the rest
add decompose function in Array to return a tuple with first element and the rest

piv199/EZSwiftExtensions,astrokin/EZSwiftExtensions,astrokin/EZSwiftExtensions,kirakik/EZSwiftExtensions,goktugyil/EZSwiftExtensions,goktugyil/EZSwiftExtensions,kirakik/EZSwiftExtensions,piv199/EZSwiftExtensions