Adds podspec

This adds a podspec that takes care of the setup process described in README.
The only manual step involves seting up your *.traineddata files.
Correcting repo path
added podspec template arm64
ONLY_ACTIVE_ARCH YES
podspec changed
podspec changed
podspec changed
podspec changed
update podspec
Cocoapods
Cocoapods
Cocoapods
Cocoapods
Cocoapods
podspec update