add ios arm64 support, also enabling several compiler warning to flag up implicit conversion issues. Buddy: Malcolm
add platform runtime architecture to about box. Buddy: Tim
Merge branch 'master' into ios_64

Conflicts:
	ios/ios_src/Views/MenuView/MenuViewController.mm
fix MPLY-5249 'Pin placer cannot be moved in the 64 bit version of the mobile example app on 64 bit devices'. Buddy: Oliver