@ReactMethod
    public void getContactsMatchingString(final String searchString, final Promise promise) {
        contactsManagerImpl.getContactsMatchingString(searchString, promise);
    }
Retrieves contacts matching String.
Uses raw URI when <code>rawUri</code> is <code>true</code>, makes assets copy
otherwise.

@param searchString String to match
android/src/oldarch/com/rt2zz/reactnativecontacts/ContactsManager.java