Updates Wikitude SDK to version 4.0.2;

Internal sensor service changes.

Signed-off-by: Andreas Schacherbauer <andreas.schacherbauer@wikitude.com>
Updates Wikitude iOS SDK to version 4.0.2;

Signed-off-by: Andreas Schacherbauer <andreas.schacherbauer@wikitude.com>
Merge pull request #60 from AndreasSchacherbauerWikitude/Integration_4_0_2

Updates Wikitude SDK to version 4.0.2;